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Matteo Cavalli-Sforza (IFAE (ES))13/05/2013, 09:00
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Jordi Mas (Generalitat de Catalunya (ES))13/05/2013, 09:10
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Mario Martinez-Perez (IFAE (ES))13/05/2013, 09:20
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Sergio Bertolucci (CERN)13/05/2013, 09:30
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Mirko Pojer (CERN)13/05/2013, 10:00
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Andrew Mehta (University of Liverpool (GB))13/05/2013, 11:15
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Pablo Garcia-Abia (CIEMAT (ES))13/05/2013, 11:45
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Boris Tuchming (CEA Saclay (FR))13/05/2013, 12:15
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Robert Harlander (Bergische Universitaet Wuppertal (DE))13/05/2013, 12:45
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Lashkar Kashif (University of Wisconsin (US))13/05/2013, 14:30
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Chiara Bianchin (University of Utrecht (NL))13/05/2013, 14:30
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Loic Henri Antoine Manceau (Universita e INFN (IT))13/05/2013, 14:45
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Pasquale Musella (CERN)13/05/2013, 14:45
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Margherita Ghezzi (Roma 1, La Sapienza (IT))13/05/2013, 15:00
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Cyrille Marquet (Ecole Polytechnique)13/05/2013, 15:00
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Victor Coco (NIKHEF (NL))13/05/2013, 15:15
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Gabriel Stoicea (Horia Hulubei National Institute of Physics and Nuclear Enginee)13/05/2013, 15:15
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Burkhard Schmidt (CERN)13/05/2013, 15:30
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Rogerio Rosenfeld (UNESP - Universidade Estadual Paulista (BR))13/05/2013, 15:30
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Maria Nicassio (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))13/05/2013, 15:45
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David Olivier Jamin (Academia Sinica (TW))13/05/2013, 15:45
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Jesus Guillermo Contreras Nuno (Centro Invest. Estudios Avanz. IPN (MX))13/05/2013, 16:00
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Niklas Mohr (ETH Zurich (CH))13/05/2013, 16:00
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Martin Flechl (Albert-Ludwigs-Universitaet Freiburg (DE))13/05/2013, 16:45
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Antonio Pich (University of Valencia (ES))13/05/2013, 17:15
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Urs Wiedemann (CERN)14/05/2013, 09:00
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Begona De La Cruz (CIEMAT (ES))14/05/2013, 09:30
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Andrea Rossi (CERN)14/05/2013, 09:55
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Michele Floris (CERN)14/05/2013, 10:20
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Marco Bonvini (Deutsches Elektronen-Synchrotron (DE))14/05/2013, 11:15
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Leif Lönnblad (Lund University (SE))14/05/2013, 11:15
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Emilien Chapon (CEA Saclay / IRFU)14/05/2013, 11:30
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Lea Michaela Caminada (Lawrence Berkeley National Lab. (US))14/05/2013, 11:30
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Matthias Steinhauser (KIT)14/05/2013, 11:45
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Marco Musich (INFN Torino (IT))14/05/2013, 11:45
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Andrea Davide Benaglia (Universita & INFN, Milano-Bicocca (IT))14/05/2013, 12:00
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Stefano Augusto Pozzorini (Universitaet Zuerich (CH))14/05/2013, 12:00
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Gabriel John Facini (CERN)14/05/2013, 12:15
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Tingjun Yang (FNAL (US))14/05/2013, 12:15
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Lee Sawyer (Louisiana Tech University (US))14/05/2013, 12:30
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Boris Tuchming (CEA Saclay (FR))14/05/2013, 12:30
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Joao Gentil Mendes Saraiva (LIP Laboratorio de Instrumentacao e Fisica Experimental de Part (P))14/05/2013, 12:45
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Jernej Kamenik (Jozef Stefan Institute)14/05/2013, 14:30
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Javier Lopez Albacete (IPhT-CEA)14/05/2013, 14:30
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Maximilian Schlupp (Technische Universitaet Dortmund (DE))14/05/2013, 14:45
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Jorge Casalderrey Solana (University of Barcelona (ES))14/05/2013, 14:45
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Thiago Tomei Fernandez (UNESP - Universidade Estadual Paulista (BR))14/05/2013, 15:00
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Cibran Santamarina Rios (Universidade de Santiago de Compostela (ES))14/05/2013, 15:00
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Stefanos Leontsinis (National Technical Univ. of Athens (GR), Brookhaven National Laboratory (US))14/05/2013, 15:15
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Nicolas Arbor (Centre National de la Recherche Scientifique (FR))14/05/2013, 15:15
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Francesco Barile (Universita e INFN (IT))14/05/2013, 15:30
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Monica Pepe-Altarelli (CERN)14/05/2013, 15:30
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Markus Fasel (Ruprecht-Karls-Universitaet Heidelberg (DE))14/05/2013, 15:45
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Amal Sarkar (iit-bombay)14/05/2013, 15:45
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Carlos Lourenco (CERN)14/05/2013, 16:00
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Jure Zupan (University of Cincinnati)14/05/2013, 16:45
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Anton Poluektov (BINP)14/05/2013, 17:15
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Christian Urs Elsasser (Universitaet Zuerich (CH))14/05/2013, 17:40
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Jeroen Van Tilburg (Ruprecht-Karls-Universitaet Heidelberg (DE))14/05/2013, 18:05
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Matteo Cacciari (LPTHE Jussieu)15/05/2013, 09:00
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Jay Dittmann (Baylor University (US))15/05/2013, 09:30
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Lucia Di Ciaccio (Centre National de la Recherche Scientifique (FR))15/05/2013, 09:55
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Hermine Woehri (CERN)15/05/2013, 10:20
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George Wei-Shu Hou (National Taiwan University (TW))15/05/2013, 11:15
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Paul Fiedler (RWTH Aachen (DE))15/05/2013, 11:15
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Harry Victor Cliff (University of Cambridge (GB))15/05/2013, 11:30
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Martin Goerner (Hamburg University (DE))15/05/2013, 11:30
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Monika Blanke (CERN)15/05/2013, 11:45
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Kevin Daniel Finelli (Duke University (US))15/05/2013, 11:45
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Roel Aaij (NIKHEF (NL))15/05/2013, 12:00
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Regina Demina (University of Rochester (US))15/05/2013, 12:00
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Tomas Pilar (University of Warwick (GB))15/05/2013, 12:15
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Adrian Irles Quiles (Universidad de Valencia (ES))15/05/2013, 12:15
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Rick Van Kooten (Indiana University (US))15/05/2013, 12:30
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Pavol Bartos (Comenius University (SK))15/05/2013, 12:30
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Paolo Maestro (Universita degli studi di Siena (IT))15/05/2013, 12:45
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Hamed Bakhshiansohi (School of Particles and Accelerator Inst. for Res. in Fundam. S)15/05/2013, 12:45
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Iftah Galon (Technion, Israel Institute of Technology (IL))15/05/2013, 13:00
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Fabrice Balli (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))15/05/2013, 13:00
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Risto Orava (Helsinki Institute of Physics (FI))15/05/2013, 14:30
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Rene Bellwied (University of Houston (US))15/05/2013, 15:00
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Antonio Augusto Alves Junior (Universita e INFN, Roma I (IT))15/05/2013, 15:25
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Constantinos Loizides (Lawrence Berkeley National Lab. (US))15/05/2013, 15:50
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Andreas Weiler (Deutsches Elektronen-Synchrotron (DE))16/05/2013, 09:00
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Laurent Vacavant (CPPM - CNRS/IN2P3 et Aix-Marseille Université (FR))16/05/2013, 09:30
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Tulika Bose (Boston University (US))16/05/2013, 09:55
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Alessandro Gaz (University of Colorado at Boulder (US))16/05/2013, 10:20
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Alice Maria Donati (Universidad de Granada)16/05/2013, 11:15
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Carl Vuosalo (Ohio State University (US))16/05/2013, 11:15
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Matthew Beckingham (University of Washington (US))16/05/2013, 11:30
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Francisco del Aguila (University of Granada (ES))16/05/2013, 11:30
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Federica Primavera (Universita e INFN (IT))16/05/2013, 11:45
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Steven Worm (CERN)16/05/2013, 11:45
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Domenec Espriu Climent (University of Barcelona (ES))16/05/2013, 12:00
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Jalal Abdallah (IFAE Barcelona (ES))16/05/2013, 12:00
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Javi Serra (Cornell University (US))16/05/2013, 12:15
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Lara Lloret Iglesias (Universidad de Oviedo (ES))16/05/2013, 12:15
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Suen Hou (Academia Sinica (TW))16/05/2013, 12:30
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Livia Soffi (Universita e INFN, Roma I (IT))16/05/2013, 12:30
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Daniela Salvatore (Universita della Calabria (IT))16/05/2013, 12:45
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Sandro Fonseca De Souza (Universidade do Estado do Rio de Janeiro (BR))16/05/2013, 14:30
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Enrico Bertuzzo (Scuola Normale Superiore)16/05/2013, 14:30
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Alex Kastanas (University of Bergen (NO))16/05/2013, 14:45
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Alex Grecu (Horia Hulubei NIPNE, Bucharest (RO))16/05/2013, 14:45
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Verena Ingrid Martinez Outschoorn (Fermi National Accelerator Lab. (US))16/05/2013, 15:00
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Barbara Guerzoni (Universita e INFN (IT))16/05/2013, 15:05
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Mirjam Lena Fehling (Albert-Ludwigs-Universitaet Freiburg (DE))16/05/2013, 15:15
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Juan Rojo Chacon (CERN)16/05/2013, 15:20
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Didar Dobur (University of Florida (US))16/05/2013, 15:30
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Eram Syed Rizvi (Queen Mary, University of London)16/05/2013, 15:35
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Claudia Giuliani (Albert-Ludwigs-Universitaet Freiburg (DE))16/05/2013, 15:45
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Kenan Mujkic (University College London (UK) and Deutsches Elektronen-Synchrotron (DE))16/05/2013, 15:50
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Francesco Riva (Ecole Polytechnique Federale de Lausanne (CH))16/05/2013, 16:00
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Tom Melia (CERN)16/05/2013, 16:05
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Matthew Reece (Harvard University)16/05/2013, 16:45
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Fabrizio Salvatore (University of Sussex (GB))16/05/2013, 17:15
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Celso Martinez Rivero (Universidad de Cantabria (ES))16/05/2013, 17:40
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Sigve Haug (Universitaet Bern (CH))16/05/2013, 18:05
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Isabel Josa Mutuberria (CIEMAT (ES))17/05/2013, 09:00
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Ashutosh Kotwal (Duke University (US))17/05/2013, 09:25
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Patricia Ward (University of Cambridge (GB))17/05/2013, 09:50
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Luca Silvestrini (INFN Rome (IT))17/05/2013, 10:15
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Luca Barze (Universita e INFN (IT))17/05/2013, 11:15
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Bhaskar Dutta (Texas A&M University)17/05/2013, 11:15
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Jack Goddard (Queen Mary, University of London)17/05/2013, 11:30
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Marc Dunser (Eidgenoessische Tech. Hochschule Zuerich (CH))17/05/2013, 11:30
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Matthew Ryan Relich (University of California Irvine (US))17/05/2013, 11:45
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Francesco Romeo (Universita e INFN (IT))17/05/2013, 11:45
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Ronan James Wallace (University College Dublin (IE))17/05/2013, 12:00
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Gennaro Corcella (INFN - Laboratori Nazionali di Frascati (IT))17/05/2013, 12:00
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Jorge de Blas Mateo (University of Notre Dame)17/05/2013, 12:15
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Fedor Ratnikov (KIT - Karlsruhe Institute of Technology (DE))17/05/2013, 12:15
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Andres Carlos Florez Bustos (York University (CA))17/05/2013, 12:30
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Ignasi Rosell (Universidad CEU Cardenal Herrera & IFIC, Valencia)17/05/2013, 12:30
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Hengne Li (University of Virginia (US))17/05/2013, 12:45
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Tae Jeong Kim (Korea University (KR))17/05/2013, 12:45
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Manuel Perez-Victoria (University of Granada)17/05/2013, 14:30
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Jan Andre Stillings (Universitaet Bonn (DE))17/05/2013, 14:30
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Snezana Nektarijevic (Universite de Geneve (CH))17/05/2013, 14:45
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Davide Piccolo (Universita e INFN (IT))17/05/2013, 14:45
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Yeng-Ming Tzeng (National Taiwan University (TW))17/05/2013, 15:00
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Cedric Delaunay (CERN)17/05/2013, 15:00
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Juan Antonio Aguilar Saavedra (Universidad de Granada)17/05/2013, 15:15
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Mikael Rodriguez Chala (LIP Laboratorio de Instrumacao e Fisica Experimental de Particu)17/05/2013, 15:15
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Lulu Liu (University of Michigan (US))17/05/2013, 15:30
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Francesco Rubbo (Universitat Autònoma de Barcelona (ES))17/05/2013, 15:30
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Abideh Jafari (School of Particles and Accelerator Inst. for Res. in Fundam. S)17/05/2013, 15:45
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John Stupak (Purdue University Calumet (US))17/05/2013, 15:45
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Stefano Camarda (Deutsches Elektronen-Synchrotron (DE))17/05/2013, 16:00
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Christian Schwanenberger (University of Manchester)17/05/2013, 16:45
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Maria Jose Costa (IFIC Valencia (ES))17/05/2013, 17:10
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Justin Pilot (University of California Davis (US))17/05/2013, 17:35
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Fabio Maltoni (Universite Catholique de Louvain (BE))17/05/2013, 18:00
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Austin Ball (CERN)18/05/2013, 09:00
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Heinz Pernegger (CERN)18/05/2013, 09:25
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Thomas Peitzmann (University of Utrecht (NL))18/05/2013, 09:50
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Richard Jacobsson (CERN)18/05/2013, 10:15
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Pilar Hernandez (Universidad de Valencia (ES))18/05/2013, 11:15
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Tatsuya Nakada (Ecole Polytechnique Federale de Lausanne (CH))18/05/2013, 11:45
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Joseph David Lykken (Fermi National Accelerator Lab. (US))18/05/2013, 12:15
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Javi Serra Marí (Cornell University)We reexamine the possibility that the 125 GeV Higgs-like resonance recently discovered at the LHC actually corresponds to a dilaton: the Goldstone-boson of spontaneous breaking of scale invariance at TeV energies. We further review the expected phenomenological deviations from the SM-Higgs and compare with other Goldstone-Higgs scenarios.Go to contribution page
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Manuella Vincter (Carleton University (CA))PosterExperimentPrecision measurements of Drell-Yan lepton-pair production in pp collisions with the ATLAS detector at the LHC will be presented. Measurements of production cross sections and associated angular correlations can provide unique insight into perturbative QCD in the absence of colour flow between initial and final states, the V-A nature of the interactions, as well as enhance the knowledge of...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))The discovery of a Higgs boson with a mass of about 125 GeV has prompted the question of whether or not this particle is part of a much larger and more complex Higgs sector than that envisioned in the Standard Model. In this talk, we outline the current results from the ATLAS Experiment regarding Beyond-the-Standard Model (BSM) Higgs hypothesis tests. Searches for additional Higgs bosons are...Go to contribution page
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Marta Calvi (Universita & INFN, Milano-Bicocca (IT))LHCb has collected the world's largest sample of charmed hadrons. This sample is used to search for direct and indirect CP violation in charm, and to measure D0 mixing parameters. Preliminary measurements from several decay modes are presented, with complementary time-dependent and time-integrated analyses.Go to contribution page
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Tom Melia (CERN)I will talk about the role that colour decompositions play in the calculations of multi-jet QCD processes at the LHC. In particular I will discuss the use of the 1/Nc expansion and the treatment of amplitudes involving multiple quark-antiquark pairs.Go to contribution page
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. H1 and ZEUS Collaborations (DESY)Measurements of open charm production cross sections in deep-inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections sigma_red^{c\bar{c}} for charm production are obtained in the kinematic range of photon virtuality 2.5<Q2<2000 GeV2 and Bjorken scaling variable 0.00003<x<0.05. The combination method accounts for the correlations of the...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Combined measurements of the couplings of the newly discovered Higgs boson are presented.Go to contribution page
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Rick Van Kooten (Indiana University (US))We present the combination of searches for the Standard Model Higgs boson at a center-of-mass energy of sqrt(s)=1.96 TeV, using the full Run 2 dataset collected with the D0 detector at the Fermilab Tevatron collider. The major contributing processes include associated production (WH->lvbb, ZH->vvbb, ZH->llbb, and WH->WWW(*)) and gluon fusion (gg-->H-->WW(*)). The significant improvements...Go to contribution page
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Manuel Manuel Perez-Victoria (University of Granada)Gauge invariance imposes model-independent correlations in the couplings and masses of heavy neutral and charged vector bosons. We show how to take advantage of these correlations in combined analyses of dilepton and lepton-plus-missing-energy signals at the LHC.Go to contribution page
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Libor Skoda (FNSPE CTU in Prague)PosterExperimentMeasurements of particle production at forward rapidities in high energy p-p, p-A and A-A collisions provide access to physics processes at very low Bjorken x. These measurements will allow to study the gluon saturation scale and improve our knowledge of parton distribution in nuclei. Specific requirements must be fulfilled for a calorimeter to successfully operate in high-multiplicity...Go to contribution page
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Marta Calvi (Universita & INFN, Milano-Bicocca (IT))The study of CP violation in Bs oscillations is one of the key goals of the LHCb experiment. Effects are predicted to be very small in the Standard Model but can be significantly enhanced in many models of new physics. We present the world's best measurement of the CP-violating phase phis using B0s->J/psiphi and B0s->J/psipipi decays, and of the time integrated asymmetry in semileptonic Bs...Go to contribution page
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Rick Van Kooten (Indiana University (US))We present results of the measurements of CP-violating parameters for a variety of b hadron species using the full Run 2 data set collected by the DØ detector. These include a new analysis testing for direct CP violation in B+ decays, specific semileptonic charge asymmetries of B0s and B0 decays testing for CP violation in mixing, and a new update of the DØ dimuon charge asymmetry as a...Go to contribution page
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Karel Safarik (CERN)PosterExperimentThe measurement by the ALICE Collaboration of Single and Double Diffraction cross-sections in pp collisions, at √s = 0.9, 2.76 and 7 TeV will be presented. The relevance of diffraction to the understanding of inelastic pp interactions will be discussed and the measurement of the inelastic pp cross-section will be presented. A brief status of ALICE studies of centrally produced systems,...Go to contribution page
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Tingjun Yang (FNAL)Prompt photon production is a field of very high interest in hadron colliders. It provides probes to search for new phenomena and to test QCD predictions. I will present two direct photon results using the full CDF Run II data set: diphoton cross section measurements and photon + heavy flavor cross section measurements. Both measurements are compared with a wide variety of theoretical...Go to contribution page
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Prof. Francisco del Aguila (University of Granada (ES))Lepton number violating scalars decaying into lepton pairs, as those mediating the see-saw of type II, always include doubly -charged components. If these are observed at LHC, their quantum numbers can be determined accounting for their leptonic decays in pair and single production.Go to contribution page
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Josu Cantero Garcia (Universidad Autonoma de Madrid (ES))PosterExperimentThe dynamics of isolated-photon plus jet production in pp collisions at a centre-of-mass energy of 7 TeV has been studied with the ATLAS detector at the LHC. Measurements of isolated-photon plus jet differential cross sections are presented as functions of photon transverse energy, jet transverse momentum and jet rapidity. In addition, the differential cross sections as functions of the...Go to contribution page
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Margherita Ghezzi (Roma 1, La Sapienza)HiggsThe discovery of a Higgs-like boson, together with no hint of the existence of any additional new particle, makes us face with the problem of finding strategies to study the properties of the electroweak simmetry breaking sector. In this talk, the effective Lagrangian that describes a light Higgs-like boson will be reviewed, focusing on the reasonable case in which the Higgs-like particle is a...Go to contribution page
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Marta Calvi (Universita & INFN, Milano-Bicocca (IT))We report measurements of electroweak boson production in the forward region, using data collected at the LHCb experiment with a centre of mass energy of sqrt(s)=7 TeV with an integrated luminosity of up to 1.0 fb-1. W and Z bosons are reconstructed in leptonic decay channels, and their cross-sections determined using data-driven techniques. All results are compared to NNLO predictions.Go to contribution page
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Jorge de Blas Mateo (University of Notre Dame)We briefly review the global Standard Model fit to electroweak precision data. After that we analyze the electroweak constraints on new interactions, following a model-independent approach based on a general dimension-six effective Lagrangian. Finally, we also discuss the limits on several common new physics additions.Go to contribution page
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Prof. George W.S. Hou (National Taiwan University)The very rare Bd --> mu+mu- decay may be the last chance for New Physics in flavor sector at the LHC, before the 13 TeV run in late 2014. Partially motivated by the known tension in sin2beta/phi1, enhancement beyond (3--4) x 10^{-10} would likely imply the effect of a fourth generation of quarks. If observed at this level, the 126 GeV boson may not be the actual Higgs boson, while the b --> d...Go to contribution page
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Jan Andre Stillings (Universitaet Bonn (DE))PosterExperimentIn proton-proton collisions at the LHC, top quarks can be produced in pairs via the strong interaction and individually via the weak interaction. The weak interaction production can be subdivided into three channels: the tchannel, the s-channel and the associated production of a W boson and a top quark. The total production cross section of these three channels is about one third of the...Go to contribution page
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Luca Barze (CERN)The LHC is expected to improve the measurements of the fundamental parameters of the Standard Model, allowing to probe the electroweak symmetry breaking mechanism. Among other things, it will measure the W boson mass with an uncertainty of about 10 MeV and it will test the non-abelian nature of the electroweak force measuring the gauge boson self-couplings in the high energy limit. The...Go to contribution page
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Sandro Fonseca De Souza (Universidade do Estado do Rio de Janeiro (BR))In this talk, recent CMS physics analysis on the measurement of central exclusive production as well as soft and hard diffractive processes are discussed. Measurement of the exclusive two-photon production of WW pairs in pp collisions at 7 TeV, based on samples of events collected during 2011 physics runs, is presented. In particular, these measurements should provide unique sensitivity to...Go to contribution page
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David Straub (Johannes Gutenberg-Universität Mainz)
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Alice Maria Donati (Universidad de Granada)We present the first complete calculation performed within the Four Dimensional Regularization scheme (FDR), namely the loop-induced on-shell amplitude for the Higgs boson decay into two photons in an arbitrary gauge. FDR is a new technique -free of infinities- for addressing multi-loop calculus, which automatically preserves gauge invariance, allowing for a 4-dimensional computation at the...Go to contribution page
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Stefanos Leontsinis (National Technical Univ. of Athens (GR))PosterExperimentATLAS has a wide programme of study of production cross section and of properties of particles with beauty, as well as charmonium and of bottomonium states. Recent results on the production the Y(nS), n=1-3 and of charged B mesons are discussed. In both cases, the differential production cross section is measured over a range of transverse momentum up to about 100 GeV, much wider than in...Go to contribution page
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Thiago Tomei Fernandez (UNESP - Universidade Estadual Paulista (BR))The capabilities of the CMS experiment allow to investigate various hard probes, as well as bulk particle production and collective phenomena, using the calorimetry, muon and tracking systems covering a large range in pseudorapidity. In this talk selected results of the CMS experiment from pp and PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV will be discussed. First results from the recent pPb...Go to contribution page
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Markus Fasel (Ruprecht-Karls-Universitaet Heidelberg (DE))Heavy-flavour production in proton-proton collisions serves as a precise test for perturbative QCD. Furthermore it provides the reference for the corresponding studies in heavy-ion collisions. The measurements are performed by ALICE in hadronic channels as well as in the semi-electronic decay channels at midrapidity, profiting from the excellent particle identification capabilities and the...Go to contribution page
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Hayk Pirumov (PI Heidelberg)PosterTheoryThe proton parton distribution functions (PDFs) are essential for precision physics at the LHC and other hadron colliders. Their current level of accuracy dominates the theory uncertainties in Higgs production and it affects substantially theory predictions for Beyond Standard Model high mass production. The determination of the PDFs is a complex endeavor involving several physics...Go to contribution page
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Prof. Matthias Steinhauser (KIT)In this talk higher order corrections to Higgs boson production cross section both in the Standard Model and its minimal extension (MSSM) are discussed. As special focus is put on the recent next-to-next-to-leading order (NNLO) corrections within the MSSM and on the first step towards third-order corrections within the Standard Model.Go to contribution page
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Marco Bonvini (Deutsches Elektronen-Synchrotron (DE))The large contributions of known NLO and NNLO QCD corrections to the Higgs cross section call for a reliable prediction of higher order QCD corrections. In this talk, an approximate expression for the Higgs production inclusive cross section in gluon fusion at NNNLO in QCD with finite top mass is presented. We argue that an accurate approximation can be constructed combining (and improving)...Go to contribution page
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Glenn Wouda (Uppsala University)PosterTheoryI present a model with two scalar doublets and a softly broken Z2 symmetry, where only one of the doublets gets a vacuum expectation value and couples to fermions at tree-level. The softly broken Z2 symmetry leads to interesting phenomenology such as mixing between the two doublets and a charged scalar which can be light and dominantly decays in W gamma. The model can also naturally reproduce...Go to contribution page
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amal (For the STAR cOLLABORATION) sarkar (Indian Institute of Techology Bombay)The Relativistic Heavy-Ion Collider (RHIC), at BNL, has started its beam energy scan(BES) program by colliding heavy-ions extending the reach in baryonic chemical potential upto 400 MeV. One of the main goals of this beam energy scan program is to locate the critical point which is postulated to lie at the end of the phase transition boundary between partonic and hadronic matter. Finite...Go to contribution page
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Eulogio Serradilla Rodriguez (Universidad Nacional Autonoma (MX))The unique particle identification capabilities of ALICE at LHC allow systematic studies of the production of identified particles in pp collisions. In this talk we will present measurements of several light flavour particles, including resonances and multi-strange particles. Results will be discussed and systematically compared with data from Monte Carlo models, such as recent Pythia tunes....Go to contribution page
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Dr Eram Syed Rizvi (Queen Mary, University of London)Inclusive e\pmp single and double differential cross sections for neutral and charged current deep inelastic scattering processes are measured with the H1 detector at HERA. The data were taken at a centre-of-mass energy of \surds = 319GeV with a total integrated luminosity of 333.7 pb-1 shared between two lepton beam charges and two longitudinal lepton polarisation modes. The differential...Go to contribution page
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pamela ATLAS Collaboration (Ferrari)Despite the absence of experimental evidence, weak scale supersymmetry remains one of the best motivated and studied Standard Model extensions. This talk summarises recent ATLAS results on inclusive searches for supersymmetric squarks and gluinos in events containing jets, missing transverse momentum with and without light leptons, taus or photons.Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Properties of the top quark are measured with the ATLAS detector using LHC proton-proton collisions data. Measurements of the top-quark mass, charge and polarisation, as well as of the polarization of W bosons in top quark decays to probe the Wtb-vertex are presented. In addition, measurements of the spin correlation between top and antitop quarks as well as of the top-quark charge...Go to contribution page
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Mrs Nameeqa Firdous (University of Innsbruck)PosterExperimentWe investigate different phenomenological models implemented in PYTHIA6 using data from ATLAS experiment to find best fit. These models include Multiple Parton Interactions model, different scenarios of Matter Overlap and Color Reconnection models as well as Lambda_QCD selection in alpha_s. We used three different parton density functions (PDFs) to study their effects on the selected...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Differential measurements of inclusive and dijet production provide stringent tests of higher order QCD predictions and provide input for determination of parton density functions. Inclusive jet multiplicity ratios are sensitive to the strong coupling constant alpha_S and have reduced sensitivity to the uncertainties due to parton distribution functions. Measurements of the inclusive...Go to contribution page
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Denis Rathjens (Hamburg University (DE))PosterJet reconstruction and calibration in the CMS experiment are complicated by the nonlinear response of the calorimeters and the high pileup conditions. These difficulties are mitigated at CMS by utilising the particle flow approach. The measurements of the jet energy calibration in CMS are summarized and presented. They are performed with data samples collected in proton-proton collisions at a...Go to contribution page
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Prof. David Toback (Texas A & M University (US)), Dr Homer Wolfe (Ohio State University (US)), Jonathan Wilson (University of Michigan)We measure the asymmetry of the lepton in semileptonic ttbar decays in the full Run II sample of 9.4/fb. We develop a new technique to correct for the incomplete lepton acceptance and derive a parton-level asymmetry. The result of Afb(lep) = 0.094^{+0.032}_{-0.029} is approximately 2σ above the current Standard Model NLO prediction of Afb(lep) = 0.036.Go to contribution page
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Marta Calvi (Universita & INFN, Milano-Bicocca (IT))With a unique forward acceptance, and excellent vertexing and particle identification capability, LHCb is well-placed to make important contributions to heavy ion physics through measurements performed using data taken during pA and Ap collisions. The first studies of these data will be presented. These include measurements of particle multiplicity and studies of strange and charmed...Go to contribution page
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Andres Guillermo Delannoy Sotomayor (Vanderbilt University (US))PosterExperimentA search for physics beyond the standard model is performed with one or more hadronically decaying τ-leptons, highly energetic jets, and large momentum imbalance in the final state. The data sample corresponds to an integrated luminosity of 5.0 fb^(−1) of pp collisions at √s = 7 TeV collected with the CMS detector at the LHC.Go to contribution page
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Francesco Barile (Universita e INFN (IT))Nuclear matter under extreme conditions can be investigated in ultra-relativistic heavy-ion collisions. The measurement of transverse momentum (p$_{T}$) distributions and yields of identified particles is a fundamental step in understanding collective and thermal properties of the matter produced in such collisions. At intermediate transverse momentum, it allows for testing the "recombination...Go to contribution page
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Domenec Espriu (University of Barcelona (ES))WW scattering is dominated at high energies by their longitudinal components, which are the most sensitive to the nature of the electroweak symmetry breaking. Prior to the discovery at the LHC of a Higgs-like particle, unitarization tools were extensively used to show that, in the absence of a light Higgs boson, new resonances resulting from the would-be strongly-interacting electroweak...Go to contribution page
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The full CDF Run II data set, corresponding to an integrated luminosity of 9.3/fb of p-pbar collisions at 1.96 TeV, is used to measure the time-dependent ratio of decay rate for D0 ->K+ pi- to that for D0->K- pi+ . The ratio is used to determine the mixing parameters R_D, x'^2, and y' and the significance of excluding the no-mixing hypothesis x'^2 = y' = 0.Go to contribution page
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Pamela Ferrari (NIKHEF (NL))ATLAS measurements of diboson production processes involving combinations of W, Z and isolated photons are summarized. Measurements using data at 7 TeV as well as new results using data at 8 TeV are presented. The measurements are performed using leptonic decay modes, including the invisible decay Z--> nunu, as well as semileptonic channels. Differential and total visible cross sections...Go to contribution page
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Miroslav MyskaPosterExperimentThe presence of double parton scattering in proton-proton collisions at sqrt(s) = 7 TeV was measured by the ATLAS detector at the LHC. The analysed dataset was recorded in 2010 and corresponds to an integrated luminosity of 36 pb-1. The process under study is the production of a W boson, decaying into an electron or muon, in association with two jets. The fraction of double parton...Go to contribution page
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Marta Calvi (Universita & INFN, Milano-Bicocca (IT))The angle gamma of the CKM unitarity triangle remains the least precisely measured parameter of the CKM mixing matrix. The precision measurement of this parameter is one of the main goals of the LHCb experiment. We present a wide range of measurements of CP violation and partial rates in B->DK decays, as well as the latest LHCb measurement of gamma combining all the individual inputs.Go to contribution page
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Lee Sawyer (Louisiana Tech University (US))We present measurements of the differential cross section dsigma/dpT_gamma for the inclusive production of a photon in association with a b/c-quark jet. The results are based on data corresponding to an integrated luminosity of 8.7 fb^-1, recorded with the D0 detector at the Fermilab Tevatron ppbar collider at sqrt(s)=1.96 TeV. The measured cross sections are compared with next-to-leading...Go to contribution page
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Dr regina demina (university of rochester)We present the most recent measurement of the top quark pair cross section with the D0 detector at the Tevatron proton-antiproton collider in lepton plus jet and dilepton channels and the measurements of differential distributions of top quarks in the lepton plus jet channel using full D0 Run~II data. The measured spectra, binned in several observables, are compared to those obtained from...Go to contribution page
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Jiri Hejbal (Acad. of Sciences of the Czech Rep. (CZ))PosterExperimentA measurement of the W+W− production cross section in proton-proton collisions is presented. The W+W− leptonic decay channels are analysed using data collected by the ATLAS detector at the CERN Large Hadron Collider. The results are first obtained in kinematic regions defined by the decay kinematics and then extrapolated to the full phase space. Comparisons to NLO QCD predictions are...Go to contribution page
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Sara Borroni (Deutsches Elektronen-Synchrotron (DE))PosterExperimentWhile in the Standard Model top quarks are predicted to be produced unpolarized at the LHC, several models beyond the SM predict a nonzero polarization. In particular, some of the models predicting a larger forwardbackward ttbar asymmetry than predicted in the SM, as measured at the Tevatron, predict a positive top quark polarization. Using 4.7 fb1 of data collected by the ATLAS...Go to contribution page
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Rick Van Kooten (Indiana University (US))We present the measurements of charge asymmetries from $W$ boson decay in both electron and muon channels and also the $Z/gamma^*$ $\phi^*$ distribution with RunII data from 7.3 fb$^{−1}$ to 9.7 fb$^{−1}$ collected by the D0 detector at the Fermilab Tevatron Collider. In the electron charge asymmetry measurement,we present the lepton asymmetry as a function of the electron transverse...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))The production of the W and Z bosons is the standard candle process at the LHC. The differential Z/gamma∗ and the charge dependent W+ and W- cross sections are provided in bins of boson rapidity and lepton pseudorapidity. A measurement of angular correlations in Drell–Yan lepton pairs for neutral current process via the phi* observable is also presented. This variable probes the same...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))HiggsMeasurements of the mass, couplings and spin/CP properties of the recently discovered Higgs boson in the di-boson (H->gammagamma, H->ZZ->4l, H->WW->lvlv) final states are presented.Go to contribution page
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Andrea Davide Benaglia (Universita & INFN, Milano-Bicocca (IT))CMS results are presented on the measurement of properties of the Higgs-like particle discovered last summer with a mass in the range of 125-126 GeV, based on the full statistics of about 25 fb-1, collected in 2011 and 2012 at 7 and 8 TeV respectively. A discussion will be given on the mass measurement, couplings and the spin-parity properties of this new particle. The most recent results will...Go to contribution page
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Abideh Jafari (School of Particles and Accelerator Inst. for Res. in Fundam. S)Measurements of several top-quark properties are presented, obtained from the CMS data collected in 2011 and 2012 at centre-of-mass energies of 7 and 8 TeV. The results include measurements of the top pair charge asymmetry, the W helicity in top decays, the top quark charge, and of the ttbar spin correlation and the search for anomalous couplings. The fraction of top quarks decaying into a...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))The production of jets in association with a W or Z boson in proton-proton collisions at 7 TeV study multi-leg QCD diagrams. The cross sections, differential in several kinematics variables, have been measured up to high jet multiplicities and compared to new higher-order QCD calculations. Measurements of vectors bosons in association with heavy flavor, such as W+c and W+b production, have...Go to contribution page
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Stefano Augusto Pozzorini (Universitaet Zuerich (CH))OpenLoops is a fast and flexible generator of one-loop scattering amplitudes, which allows to compute NLO corrections to many-particle processes within the Standard Model. Using OpenLoops in combination with Sherpa permits to prepare NLO simulations in a fully automated way. Matching and merging at NLO with the novel MEPS@NLO technique are also fully supported. As a first nontrivial...Go to contribution page
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Lara Lloret Iglesias (Universidad de Oviedo (ES))PosterExperimentWe present the performance of missing transverse momentum (MET) reconstruction in CMS, using 8 TeV pp collision data corresponding to an integrated luminosity up to 12.2 ± 0.5 fb−1. Events with anomalous MET are studied, and the performance of algorithms used to identify those events is presented. The scale and resolution for MET, including the effects of multiple pp interactions in the same...Go to contribution page
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Prof. Rogerio Rosenfeld (IFT-UNESP)HiggsIf the electroweak symmetry breaking is originated from a strongly coupled sector, as for instance in composite Higgs models, the Higgs boson couplings can deviate from their Standard Model values. In such cases, at sufficiently high energies there could occur an onset of multiple Higgs boson and longitudinally polarised electroweak gauge boson (V_L) production. We study the sensitivity to...Go to contribution page
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Simone Zimmermann (Universitaet Bonn (DE))PosterExperimentA search for long-lived, multi-charged particles has been performed using the ATLAS detector.We have examined data taken during the 2011 LHC running, corresponding to an integrated luminosity of 4.4 fb−1. A search was made for charged particle tracks exhibiting anomalously high ionization consistent with stable massive particles with charges from |q|=2e to |q|=6e. For this search new...Go to contribution page
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Lee Sawyer (Louisiana Tech University (US))PosterExperimentWe present measurements of three different multi-jet cross section ratios. These include the very first measurements of the new quantities $R_{\DeltaR}$ and $R_{\Delta\phi}$, and a measurement of $R_{3/2}$. The variable $R_{\DeltaR}$ measures the average number of neighboring jets for jets from an inclusive jet sample. The variable $R_{\Delta\phi}$ measures the fraction of the inclusive dijet...Go to contribution page
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Cyrille Marquet (Ecole Polytechnique)Within the Color Glass Condensate (CGC) framework, I will discuss particle production in the collision of a dilute projectile with a dense hadronic target. For years CGC studies focused on the dipole scattering amplitude, and it's evolution towards high energies or small x. One has now reached an accuracy sufficient to quantitatively describe single inclusive particle production in p+A type...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Precision determinations of the flavor sector allow the search for indirect new physics signatures. At the forefront of these studies are the determinations of interference of new physics with known Df=1 and Df=2 processes. The ATLAS collaboration explores this area with competitive results measuring the CP violating phase phi_s from Bs->J/Psi phi decays and investigating rare B decays...Go to contribution page
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Paul Fiedler (Aachen)I give an overview on the current theoretical status of the top quark pair production total cross section focusing on the recently derived NNLO result for the gluon fusion channel, which completes the fixed order NNLO calculations. Using our result to provide the NNLO+NNLL prediction for the total cross section, I discuss its phenomenological impact and compare it with the most precise LHC and...Go to contribution page
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Mr Andrii Tykhonov (Institute Jozef Stefan, Ljubljana, Slovenia)PosterTheoryWe consider the hadron-hadron inelastic scattering in the framework of QCD perturbation theory. It is shown that in QCD due to conservation of colour it is prohibitive to consider tree-level diagrams of inelastic scattering and one has to consider the diagrams with loops. We examine the simplest type of such diagrams, where the diagram can be split into blocks, so that the integration over...Go to contribution page
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Jernej Kamenik (Jozef Stefan Institute)Present measurements of b->c tau nu and b->u tau nu transitions differ from the standard model predictions of lepton flavor universality by almost 4sigma. We examine new physics interpretations of this anomaly. An effective field theory analysis shows that minimal flavor violating models are not preferred as an explanation, but are also not yet excluded. Allowing for general flavor violation,...Go to contribution page
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Valery Lyuboshitz (Joint Institute for Nuclear Research ( Dubna ))PosterTheoryThe coherent inelastic processes of the type a –> b, which may take place in the interaction of hadrons and \gamma quanta with nuclei at very high energies ( the nucleus remains the same ), are theoretically investigated. For taking into account the influence of the nucleus matter, the optical model, based on the concept of refraction index, is...Go to contribution page
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Chiara Bianchin (University of Utrecht (NL))The ALICE experiment studies the properties of the strongly-interacting matter created in high energy heavy-ion collisions. This state of deconfined matter, called Quark-Gluon Plasma (QGP), is predicted by Quantum Chromodynamics (QCD). Heavy quarks are a powerful probe to investigate such a state of matter, since they are predominantly produced in hard scattering processes during the early...Go to contribution page
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Sergio Bertolucci (CERN)
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Sergio Bertolucci (CERN)
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Sergio Bertolucci (CERN)
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sergio bertolucci (cern)
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Juan Rojo Chacon (CERN)With the recent discovery of the Higgs boson at the LHC, particle physics has entered a new era, where it is of utmost importance to provide accurate theoretical predictions for all relevant high energy processes for signal, bacground and New Physics production. Crucial ingredients of these predictions are the Parton Distribution Functions, which encode the non-perturbative dynamics...Go to contribution page
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Leif Lönnblad (Lund University (SE))During the last years, much effort has gone into increasing the precision of event generators by carefully matching or merging parton shower programs with exact fixed-order matrix elements. The merging of tree-level matrix elements has now become the standard for multi-jet events, but these leading order procedures lack in precision, and also suffer from a dependence on an unphysical...Go to contribution page
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Denis Rathjens (Hamburg University (DE))PosterExperimentWe interpret within the phenomenological MSSM (pMSSM) results obtained by CMS using a pp data set collected in 2011 at 7~TeV, corresponding to an integrated luminosity of 5/fb. The pMSSM is a 19-parameter realization of the MSSM defined at the SUSY scale, that captures most of the features of the general R-parity conserving weak-scale MSSM. A global Bayesian analysis is performed that yields...Go to contribution page
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Prof. Guillermo Contreras (CVUT Prague)Ultra-relativistic heavy ions generate strong electromagnetic fields which offer the possibility to study, at the LHC, gamma-nucleus processes in PbPb collisions and gamma-proton processes in pPb collisions. These events are called ultra-peripheral collisions (UPC). The photoproduction of J/Psi vector mesons in PbPb (pPb) UPC is sensitive to the gluon distribution of the interacting nuclei...Go to contribution page
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Valery Lyuboshitz (Joint Institute for Nuclear Research ( Dubna ))PosterTheorySpin correlations for the \Lambda \Lambda and \Lambda \bar{\Lambda} pairs, generated in relativistic heavy ion collisions, and related angular correlations at the joint registration of hadronic decays of two hyperons, in which space parity is not conserved, are analyzed. The correlation tensor components can be derived from the double angular ...Go to contribution page
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Francesco Micheli (Universita e INFN, Roma I (IT))PosterExperimentWe present here the results of the first search for the associated production of the Higgs boson with a $t \bart$ pair, using the events where the Higgs boson decays to two photons in CMS. In order to maximize acceptance and sensitivity to such a small signal, we device two different sets of event selection criteria, optimized for semileptonic and all-hadronic $t \bar t$ decays.Go to contribution page
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Michal Krelina (Czech Technical University (CZ))PosterTheoryWe study nuclear effects in production of large-p_{T} hadrons on nuclear targets at different energies corresponding to RHIC and LHC experiments. For calculations we employ the QCD improved parton model including the intrinsic parton transverse momenta and nuclear broadening. This model is firstly tested reproducing well the data on p_{T} spectra of hadrons produced in proton-proton and...Go to contribution page
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Lara Lloret Iglesias (Universidad de Oviedo (ES))We present studies of diboson production in pp collisions at 7 TeV and 8 TeV center-of-mass energy based on data recorded by the CMS detector at the LHC in 2011 and 2012. These include precise measurements of W and Z production in association with a photon, as well as WW, WZ, and ZZ production at the LHC. The results are interpreted in terms of constraints on anomalous triple gauge couplings.Go to contribution page
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Marta Calvi (Universita & INFN, Milano-Bicocca (IT))The latest years have seen a resurrection of interest in searches for exotic states motivated by tantalising observations by Belle and CDF. Using the data collected at pp collisions at 7 and 8 TeV by the LHCb experiment we present studies of the X(3872) properties as well as preliminary studies and prospects for studies of putative states such as the Z(4430)+Go to contribution page
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Dr Loic MANCEAU (INFN sezione di Torino)ALICE is the LHC experiment dedicated to the study of the Quark-Gluon Plasma (QGP). Among the prominent probes of the QGP, quarkonia are abundantly produced at the LHC energies. The design of the ALICE detector was optimised to allow quarkonia detection down to zero transverse momentum. This is performed in the forward muon spectrometer (2.5 ≤ η ≤ 4) and in the central barrel (|η| < 0.9) via...Go to contribution page
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Carlos Lourenco (CERN)Studies of the production of heavy quarkonium states are very important to improve our understanding of QCD and hadron formation, given that the heavy quark masses allow the application of theoretical tools less sensitive to nonperturbative effects. J/psi and Upsilon cross sections can be reproduced by nonrelativistic QCD calculations, dominated by ``color octet" production, but the...Go to contribution page
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Sara Vanini (Universita e INFN (IT))PosterExperimentThe study of rare processes allows the indirect search of new physics through the comparison with the standard model (SM) expectations. Flavor-changing neutral current decays of b hadrons are forbidden at tree level in the SM, resulting in small SM rates. These processes are therefore good candidates for the search of new physics, such as minimal supersymmetric extension of the standard model...Go to contribution page
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Marta Calvi (Universita & INFN, Milano-Bicocca (IT))Rare decays of beauty and charm hadrons and lepton flavour/number violating decays of tau leptons test the flavour structure of the underlying theory at the level of quantum corrections. They provide information on the couplings and masses of heavy virtual particles appearing as intermediate states. A review of recent results obtained by LHCb on these topics will be presented.Go to contribution page
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Nicolas Arbor (Centre National de la Recherche Scientifique (FR))Depending on their energy and their production mechanism, photons probe different properties of strongly interacting matter produced in heavy ions collisions. Neutral meson spectra, reconstructed via their two-photon decays, are considered to be sensitive to the medium transport. In addition to that, direct photons can be used to perform a tomography of the initial states of the collision. At...Go to contribution page
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Christopher John Meyer (University of Chicago (US))PosterExperimentThe ATLAS collaboration has performed studies of a wide range of QCD phenomena. Recent soft-QCD measurements include studies of underlying event, hadronic event shapes, double parton scattering, diffraction and forward energy flow. The internal structure of jets produced in proton-proton collisions at 7 TeV centre-of-mass energy provides a direct test of QCD calculations of gluon and...Go to contribution page
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Maria Nicassio (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))Strange hadrons and resonances are among the most sensitive probes to investigate the characteristics of the system formed in heavy-ion collisions. The ALICE Collaboration has measured strange hadrons and meson resonances decaying into (final) charged particles. Results on the production of $\phi$ and $K^{*0}$ resonances, $K^0_S$, $\Lambda$, $\Xi^-$ and $\Omega^-$ and their anti-particles...Go to contribution page
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Javier Montejo Berlingen (IFAE - Barcelona (ES))PosterExperimentSince the discovery of a Higgs-‐like boson by the ATLAS and CMS experiments at the LHC, the emphasis has shifted towards measurements of its properties in order to determine whether the new particle is the Standard Model (SM) Higgs boson, or something else. Of particular importance is top-‐Higgs Yukawa coupling...Go to contribution page
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Philipp David Eller (Eidgenoessische Tech. Hochschule Zuerich (CH))PosterExperimentAfter the discovery of a Higgs-like Boson with a mass close to 125 GeV at the LHC in summer 2012, we are showing the update on the analysis of the VH cannel. In this channel the Higgs-like Boson is produced in association with a vector boson and decaying into b-quarks. We present the updated results on the full 2011 and 2012 7+8 TeV dataset. This poster will focus on one of the tree modes...Go to contribution page
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Donald Austin Belknap (University of Wisconsin (US))PosterExperimentThe most recent CMS results are presented for a search for a Standard Model Higgs boson in the ZZ decay channel where the Z bosons decay into two charged leptons. The full dataset of LHC pp collisions at 7 and 8 TeV recorded by CMS is utilized.Go to contribution page
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Prof. David Toback (Texas A & M University (US)), Dr Homer Wolfe (Ohio State University (US)), Jonathan Wilson (University of Michigan)We present a search for new particles in an extension to the standard model that includes a heavy Higgs boson (H0), a lighter charged Higgs boson (H±), and an even lighter Higgs boson h0, with decays leading to a W-boson pair and a bottom-antibottom quark pair in the final state. We use events with exactly one lepton, missing transverse momentum, and at least four jets in data corresponding to...Go to contribution page
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Ta-Wei Wang (National Taiwan University (TW))PosterExperimentWe perform a search for a pair-produced–excited top quark, t* , that decays exclusively to a top quark and a gluon using data collected by the CMS detector from pp collisions at ps = 8 TeV. The search is performed using events consistent with the semi-leptonic decay of the t*t* system, that is events having a single isolated muon or electron, missing energy, and at least six well-reconstructed...Go to contribution page
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Kilian Rosbach (Universite de Geneve (CH))PosterExperimentThe poster presents latest results of the search for top squark pair production in final states with one isolated lepton, jets, and missing transverse momentum in sqrt{s}=8 TeV pp collisions using L=21 fb-1 of ATLAS data. Two top squark decay scenarios are considered: (a) to a top quark and a long-lived undetected neutral particle (LSP), (b) to a bottom quark and a chargino, where the...Go to contribution page
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Sara Vanini (Universita e INFN (IT))PosterExperimentA search is presented in proton-proton collisions at7 TeV for fermionic triplet states expected in type III seesaw models. The search is performed using final states with three isolated charged leptons and an imbalance in transverse momentum. The data, collected with the CMS detector at the LHC, correspond to an integrated luminosity of 4.9 /fb No excess of events is observed above the...Go to contribution page
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John Stupak (Purdue University Calumet (US))We present searches for heavy resonances, such as the Z', W', or leptoquarks, in final states with leptons.Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Resonances decaying into a pair of particles are an obvious place to look for phenomena beyond the Standard Model. This talk summarizes recent results on searches for resonances in pairs of jets, lepton pairs, leptons and missing transverse energy and pairs of photons or W/Z bosons. Various models are considered such the Z' and W', the Randall-Sundrum gravitons as well as the ADD large...Go to contribution page
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James Christopher Coggeshall (Univ. Illinois at Urbana-Champaign (US))PosterExperimentThe ATLAS detector is used to search for heavy neutral gauge bosons (Z′) decaying to an electron-positron pair or a muon-antimuon pair. Results are presented based on the analysis of pp collisions at a center-of-mass energy of 8 TeV corresponding to an integrated luminosity of approximately 20 fb−1. A Z′ with Standard Model Z couplings to fermions is excluded at 95\% C.L. for masses below 2.79...Go to contribution page
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Mr Valerio Rossetti (Universitat Autònoma de Barcelona (ES))PosterExperimentWe present results by the ATLAS experiment on a search for new phenomena in pp collision events with one high momentum jet and large missing transverse energy. The data are compared to the SM predictions, dominated by the irreducible background from W/Z+jets production with neutrinos and mis-identified electrons and muons in the final state. The results are interpreted in the context of...Go to contribution page
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Yeng-Ming Tzeng (National Taiwan University (TW))We present searches for massive top and bottom quark partners at CMS using data collected at sqrt(s)=7 and 8 TeV. Such partners can be seen in 4th generation models, or can be found in models predicting vector-like quarks to solve the Hierarchy problem and stabilize the Higgs mass. Other searches focus on excited states of composite heavy objects that decay to top quarks and jets. The searches...Go to contribution page
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Marc Dunser (Eidgenoessische Tech. Hochschule Zuerich (CH))PosterAlthough same sign dileptons final states are very rare in the SM context, they appear naturally in many different new physics scenarios such as SUSY where two same-sign dileptons can be produced in the decay chain of supersymetric particles. Different scenarios can be presented: Same-sign dileptons accompanied by b-quarks can arise from SUSY processes where 3rd generation quark...Go to contribution page
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Antonella Succurro (Universitat Autònoma de Barcelona (ES))PosterExperimentThe high energy frontier opened by the LHC is allowing us to explore physics scenarios where new physics might lay. The need to go beyond the Standard Model (SM) comes from various unanswered questions, like where does the matter-antimatter asymmetry comes from? What is the nature of Dark Matter? How can the hierarchy problem be solved? The recent discovery of an Higgs-like boson...Go to contribution page
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Prof. David Toback (Texas A & M University (US)), Dr Homer Wolfe (Ohio State University (US)), Jonathan Wilson (University of Michigan)We report the most sensitive search to date for forbidden and exotic decays of the Z boson to a pair of photons, a pair of neutral mesons, or a neutral meson and a photon. The search is using the full CDF dataset corresponding to 10.0/fb of integrated luminosity. The two decay products are reconstructed in the electromagnetic calorimeter, spanning a rapidity range of |η| < 1.1, and their...Go to contribution page
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Merlin Davies (Universite de Montreal (CA))PosterExperimentAlthough recent LHC results are compatible with an electroweak symmetry breaking through the Standard Model Higgs mechanism, the inherent implausible fine-tuning it requires suggests new phenomena must exist at or beyond energies of O(1) TeV. In this perspective, diboson resonances would be key signatures in understanding the structures beyond the Standard Model. With 13 fb-1 of ATLAS recorded...Go to contribution page
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Dr Fedor Ratnikov (KIT - Karlsruhe Institute of Technology (DE))In this talk, the latest results from CMS on RP violating Supersymmetry are reviewed. We present results using up to 20/fb of data from the 8 TeV LHC run of 2012. Interpretations of the experimental results in terms of production of squarks, gluinos, charginos, neutralinos, and sleptons within RP violating susy models are presented.Go to contribution page
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Conrad Friedrich (Deutsches Elektronen-Synchrotron (DE))PosterExperimentIn the Standard Model (SM) transitions between top quarks and other quark flavours mediated by neutral gauge bosons, socalled Flavour Changing Neutral Currents (FCNC), are forbidden at tree level and highly suppressed at higher orders due to the GlashowIliopoulosMaiani (GIM) mechanism. However, there exist several new physics models, which significantly enhance rates of FCNC processes...Go to contribution page
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Silvio Donato (Sezione di Pisa (IT))PosterExperimentA search for the standard model Higgs boson decaying into two b-jets using associated production of the Higgs with Z boson decaying into invisible channel is presented. The CMS data sample of 4.7 fb-1 of pp collisions at the energy of 7 TeV and 19.5 fb-1 at the energy of 8 TeV have been analyzed. The techniques used in order to discriminate signal from background are explained.Go to contribution page
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Geert Jan Besjes (Radboud University Nijmegen (NL))PosterExperimentA search for squarks and gluinos in final states containing jets, missing transverse momentum and no high-pt electrons or muons is presented. The data were recorded in 2012 by the ATLAS experiment in sqrt(s)=8 TeV proton-proton collisions at the Large Hadron Collider, with a total integrated luminosity of 20 fb−1.Go to contribution page
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Verena Ingrid Martinez Outschoorn (Fermi National Accelerator Lab. (US))In this talk, the latest results from CMS on stop pair production are reviewed. We present searches preformed for different stop decay modes using up to 20/fb of data from the 8 TeV LHC run of 2012.Go to contribution page
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Basil Schneider (Universitaet Bern (CH))PosterExperimentThis poster presents results of a search for supersymmetry in events with three leptons and missing transverse momentum. The analysis uses a sample corresponding to 21 fb-1 of proton-proton collision data delivered by the LHC at sqrt(s) = 8 TeV and recorded by the ATLAS detector. Results are interpreted in phenomenological minimal supersymmetric and simplified models.Go to contribution page
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Yuichi Sasaki (University of Tokyo (JP))PosterExperimentThis poster presents a new inclusive search for supersymmetry (SUSY) by the ATLAS experiment at the LHC in proton-proton collisions at a center-of-mass energy sqrt(s) = 8 TeV in final states with jets, missing transverse momentum and one isolated electron or muon. The search is based on data from the early 2012 data-taking period, corresponding to an integrated luminosity of 5.8 fb-1. A...Go to contribution page
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Tae Jeong Kim (Korea University (KR))In this talk, the latest results from CMS on searches for Supersymmetry with GMSB in final states with photons and leptons are presented using data from the 7 and 8 TeV LHC run. The experimental results are interpreted in terms of weak as well as strong production of SUSY particles, followed by cascade decays to a Gravitino as lightest supersymmetric particle.Go to contribution page
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Didar Dobur (University of Florida (US))In this talk, the latest results from CMS on searches for new physics in final states with four W bosons and multiple b-quarks are presented using up to 20/fb of data from the 8TeV LHC run of 2012. This final state is of special importance in the context of the search for third generation squarks in gluino or sbottom cascade decays. The four W final state is reconstructed in a variety of final...Go to contribution page
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Joseph David Price (University of Liverpool (GB))PosterExperimentSearches for rare decay modes (e.g. Zγ or μμ) of the recently discovered Higgs boson with a mass of approximately 125 GeV are presented. The results of searches for invisible decays of the Higgs boson are also discussed.Go to contribution page
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Kevin Michael Mercurio (Harvard University (US))PosterExperimentWith the observation of a new particle of mass 125 GeV decaying to a pair of photons, W bosons or Z bosons, the current critical question in the field of particle physics is whether this particle is the Standard Model Higgs boson or something else. Observing the decay of the new particle to fermions and...Go to contribution page
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Benjamin Dechenaux (Centre National de la Recherche Scientifique (FR))PosterExperimentThe search for ttbar resonances that could be produced at the CERN Large Hadron Collider allow the investigation of a wide range of physics beyond the Standard Model. In such a scheme, the top quark is often produced with a transverse momentum that is large as compared to its mass. The decay of such highly boosted top leads to a topology that differs in several respects from that encountered...Go to contribution page
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Christian Jorg Rudolph (Technische Universitaet Dresden (DE))PosterExperimentThe Higgs-like boson discovered by the ATLAS and CMS collaborations is a candidate for the last unobserved particle predicted by the Standard Model (SM). The next experimental step is the measurement of its properties, most notably its couplings to fermions. This contribution will present a search for the SM...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Naturalness arguments for weak-scale supersymmetry favour supersymmetric partners of the third generation quarks with masses not too far from those of their Standard Model counterparts. Top or bottom squarks with masses less than a few hundred GeV can also give rise to direct pair production rates at the LHC that can be observed in the data sample recorded by the ATLAS detector. The talk...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Many supersymmetry models feature neutralinos, charginos and also sleptons with masses less than a few hundred GeV. These can give rise to direct pair production rates at the LHC that can be observed in the data sample recorded by the ATLAS detector. The talk presents results from searches for neutralinos, charginos and slepton pair production in final states with leptons.Go to contribution page
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Federica Primavera (Universita e INFN (IT))Results are presented from CMS on searches for Higgs-like particles in models beyond the Standard Model and searches for rare or exotic decays of the 125 GeV particle. Light Higgses as predicted in the NMSSM models are searched for. Decays of the 125 GeV Higgs-like particle into muons are explored. The most recent results will be presented.Go to contribution page
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Steven Worm (CERN)We present searches for extra dimensions in a variety of final states. Direct and virtual graviton production are considered, as well as black hole production. Interpretations of the monojet and monophoton signatures in terms of dark matter searches are presented.Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Various extensions of the Standard Model predict the existence of new types of quarks. We report on several search channels such as vector-like quarks decaying to a Higgs boson and a top quark or to a W boson and a b quark. The talk presents results from searches for new resonances decaying to a top-antitop pair, including the use of boosted top quark reconstruction techniques. These...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Naturalness arguments for weak-scale supersymmetry favour supersymmetric partners of the third generation quarks with masses not too far from those of their Standard Model counterparts. Real and virtual production of third generation squarks via decay of a gluino can be significant if the mass of the gluino does not exceed the TeV scale. The talk presents recent ATLAS results from searches for...Go to contribution page
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Marta Calvi (Universita & INFN, Milano-Bicocca (IT))HiggsThe LHCb detector is a forward single arm spectrometer designed primarily for the study of CP-violation and other rare phenomena in the decays of beauty and charm particles. LHCb is very powerful in probing New Physics by performing indirect searches. Nevertheless, a program of direct searches for Higgs and Higgs-like particles also exists. Here we present some recent results and perspectives.Go to contribution page
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Livia Soffi (Universita e INFN, Roma I (IT))We present searches for long-lived particles at CMS. These include long-lived gluinos, fractionally and multiply charged particles, and displaced particles that decay into leptons, photons, or jets.Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Several extensions of the Standard Model predict the existence of massive long-lived particles, some of these postulate the existence of a hidden sector of particles. We report on searches for weakly-interacting long-lived particles decaying to collimated lepton-jets far away from the interaction point, and for production of multicharged particles. The talk presents the final results...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))The compactification of the extra spatial dimensions in the Arkani-Hamed, Dimopoulos, and Dvali model results in a Kaluza-Klein tower of massive graviton modes. These graviton modes are produced in association with a jet or a photon and do not interact with the detectors, resulting in a monojet or a monophoton signature. This channel is also sensitive to a large class of SUSY models. The...Go to contribution page
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Carl Vuosalo (Ohio State University (US))A variety of new physics models predict heavy resonances that decay to multiple hadronic jets. These models include axigluons, colorons, diquarks, excited quarks, Randall-Sundrum gravitons, string resonances, and Z' models, among others. Using the data collected in 2012 at a center-of-mass energy of 8 TeV, the CMS collaboration has searched for such resonances that decay to two or more...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))An extended QCD sector beyond the minimal supersymmetric standard model or the admission of R-parity violation introduces new signatures to the search for supersymmetry at the LHC. Strongly interacting resonances may decay to jets, sleptons may decay via lepton-flavour violating processes and lightest supersymmetric particles may decay into many leptons with or without missing transverse...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Recent results from the ATLAS experiment of searches for the Higgs boson decaying to pairs of b-quarks using data delivered by the LHC at 7 and 8 TeV are presented. The results include two Higgs production modes: associated production with either a W or Z vector boson and associated production with a pair of top quarks.Go to contribution page
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Christian Boser (KIT - Karlsruhe Institute of Technology (DE))PosterExperimentThe most important discovery of the LHC so far was the discovery of the Higgs-like boson at 125 GeV in 2012. We present the most recent results of the search for the Higgs-like boson decaying into bottom quarks, when produced in association with a W boson. Only events where the leptonically decaying W boson and the Higgs boson possess large transverse momenta are selected. The full...Go to contribution page
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Prof. Gennady Lykasov (Joint Instirute for Nuclear Research, Dubna, Russia), Mark Stockton (McGill University (CA)), Mr Mikhail Demichev (Joint Institute for Nuclear Research, Duna, Russia), Tzvetalina Stavreva (LPSC)PosterTheorySearching for the intrinsic heavy quark component in the proton suggested in [1] was proposed recently in the forward charmed meson production in pp collisions at the LHC [2]. We extend this study to the inclusive LHC pp-production of c(b)- jets accompanied by photons. It is stimulated by the DØ and CDF results for the production of prompt photons and c(b)-jets in p¯p collisions at the...Go to contribution page
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Gennaro CorcellaI will discuss Z' production at the LHC in the Sequential Standard Model and in GUT-inspired U(1)' models. In particular, I will account for possible Z' decays in supersymmetric particle pairs, such as sleptons, charginos and neutralinos in the MSSM. The number of supersymmetric events in Z' decays at the LHC is estimated and the impact of the inclusion of supersymmetric decays on the...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Measurements of the single top quark production cross sections in proton-proton collisions with the ATLAS detector at the Large Hadron Collider are presented. Measurements of single top-quark production in the t and Wt-channels are presented and determination of the CKM matrix element |Vtb| is discussed. We also discuss the separate measurement of the top and antitop quark and the ratio....Go to contribution page
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Davide Piccolo (Universita e INFN (IT))Measurements of single top quark production are presented, performed using CMS data collected in 2012 at centre-of-mass energies of 8 TeV. The cross sections for the electroweak production of single top quarks in the t-channel and in association with W-bosons is measured and the results are used to place constraints on the CKM matrix element Vtb. Measurements of top quark properties in single...Go to contribution page
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Rick Van Kooten (Indiana University (US))We present tests of different spin and parity hypotheses for a particle H of mass 125 GeV produced in association with a vector boson and decaying into a pair of b-quarks. We use the combined analysis of the WH->lvbb, ZH->vvbb, and ZH->llbb channels using the full Run 2 dataset collected at a center-of-mass energy of sqrt(s)=1.96 TeV with the D0 detector at the Fermilab Tevatron collider. We...Go to contribution page
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Monika BlankeWhile the presence of top partners below the TeV scale is predicted by naturalness, the search at ATLAS and CMS for these states has so far been unsuccessful. Focussing on supersymmetry, we show that a large mixing between the right-handed charm and top squarks (i) is consistent with low-energy flavour constraints; (ii) reduces significantly the experimental bound on the stop mass; (iii)...Go to contribution page
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Lara Lloret Iglesias (Universidad de Oviedo (ES))PosterThe search of the standard model Higgs boson in the H→WW→2l2ν channel with the CMS detector is described. This analysis is performed in categories, depending of the number of jets and the leptons flavour, in order to enhance the Higgs signal respect to the expected irreducible backgrounds. The largest backgrounds are estimated with data- driven methods. In some categories a fit with a 2D...Go to contribution page
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Marta Calvi (Universita & INFN, Milano-Bicocca (IT))Decays of B hadrons without charmed particles in the final state offer rich opportunities to test the Standard Model. For example, CP violation in charmless charged two-body and three-body B decays provides ways to measure the CKM angle gamma and to search for New Physics. The angular distributions of decays to vector-vector final states provide additional interesting observables. We present...Go to contribution page
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Marta Calvi (Universita & INFN, Milano-Bicocca (IT))Due to its unique pseudorapidity coverage and the possibility of extending measurements to low transverse momenta, LHCb provides important input to the understanding of particle production in a kinematical range where QCD models have large uncertainties. Measurements of charged, strange and charmed particle production and energy flow are performed in the approximate pseudorapidity range...Go to contribution page
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Pasquale Musella (CERN)HiggsResults are presented on the study and search for Higgs-like particles decaying into a ZZ, WW and 2 photon final states, based on the full statistics of about 25 fb-1, collected in 2011 and 2012 at 7 and 8 TeV respectively with the CMS experiment. Different production channels namely inclusive, VBF and associated production are studied for the 2-photon final state. The following ZZ decay...Go to contribution page
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Niklas Mohr (ETH Zurich (CH))HiggsResults are presented on the study of the Higgs-like particle at 125 GeV decaying into final states consisting of either two taus, or a b anti-b quark pair, based on the full statistics of about 25 fb-1, collected in 2011 and 2012 at 7 and 8 TeV respectively with the CMS experiment. Leptonic and hadronic decay channels for the tau lepton are included in the search. Different production...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Two particle correlation measurements in p+Pb collisions at the LHC have shown a feature or features commonly referred to as the "ridge" in high-multiplicity events. The ridge describes a long-range correlation in relative pseudorapidity originally observed at small azimuthal angle separations. More recent measurements have shown a similar feature for pairs of particles with azimuthal angle...Go to contribution page
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enrico bertuzzo (CEA Saclay)After a brief summary of the 8 TeV LHC results for direct searches of SUSY particles, I will analyse their implications in the context of various supersymmetric scenarios, including both minimal and non minimal models.Go to contribution page
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Marc Dunser (Eidgenoessische Tech. Hochschule Zuerich (CH))In this talk, the latest results from CMS on searches for EWK production of Gauginos and Sleptons, in a variety of complementary final state signatures and methods, will be presented using up to 20/fb of data from the 8 TeV LHC run of 2012.Go to contribution page
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Prof. David Toback (Texas A & M University (US)), Dr Homer Wolfe (Ohio State University (US)), Jonathan Wilson (University of Michigan)We summarize the top-quark mass measurements from the CDF and D0 experiments at Fermilab. We combine published Run I (1992--1996) measurements with the most precise published and preliminary Run II (2001--2012) measurements using a data set corresponding to up to 8.7/fb of ppbar collisions. Taking uncertainty correlations into account, and adding in quadrature the statistical and systematic...Go to contribution page
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Mr Daniele Barducci (University of Southampton / NExT Institute)PosterTheoryGeneral Composite Higgs models provide an elegant solution to the hierarchy problem present in the Standard Model (SM) and give an alternative pattern leading to the mechanism of electroweak symmetry breaking (EWSB). We present a recently proposed realistic realization of this general idea analyzing in detail the Higgs production and decay modes. Comparing them with the latest Large...Go to contribution page
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Joel Alexander Klinger (University of Manchester (GB))PosterExperimentEvents with muons in the final state are an important signature for many physics topics at the Large Hadron Collider (LHC), for instance searches for muonic Higgs boson decays or new phenomena, or measurements of the standard model (SM) processes like top-quark, W-boson, and Z-boson production. The use of efficient trigger muon selections during data taking and a good understanding of their...Go to contribution page
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Christopher John Meyer (University of Chicago (US))PosterExperimentThe Tile Calorimeter (TileCal) is the central section of the ATLAS hadronic calorimeter at the Large Hadron Collider. Scintillation light produced in the tiles is transmitted by wavelength shifting fibers to photomultiplier tubes (PMTs). The resulting electronic signals from approximately 10000 PMTs are measured and digitized before being transferred to off-detector data-acquisition systems....Go to contribution page
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Elisabetta Pianori (University of Warwick (UK))PosterExperimentDuring the data-taking period from 2009 until 2012, the ATLAS trigger has been used very successfully to collect proton‐proton data at LHC center‐of‐mass energies between 900 GeV and 8 TeV. The three‐level trigger system reduces the event rate from the design bunch‐crossing rate of 40 MHz to an average recording rate of about 300 Hz. Using custom electronics with input from the calorimeter and...Go to contribution page
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PosterExperimentThe ATLAS jet trigger, in combination with other triggers, provides an important ingredient to studies of Standard Model physics and searches for new physics at the LHC. The ATLAS jet trigger system has undergone substantial modifications over the past few years of LHC operations, as experience developed with triggering in a high luminosity and high event pileup environment. In particular, the...Go to contribution page
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Dr Francesco Riva (EPFL)Recent LHC searches have provided strong evidence for the Higgs, a boson whose gauge quantum numbers coincide with those of a SM fermion, the neutrino. This raises the question of whether Higgs and neutrino may be related by supersymmetry. I will show explicitly the implications of models where the Higgs is the sneutrino: from a theoretical point of view an R-symmetry, acting as lepton number...Go to contribution page
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Javier Lopez Albacete (Granada)I shall present a brief review of recent theoretical developments and related phenomenological approaches for understanding the initial state of heavy ion collisions, with emphasis on the Color Glass Condensate effective theory formalism and the phenomenon of gluon saturation. I shall also discuss how the data on p+Pb collisions at the LHC can be used to constrain the quantitative...Go to contribution page
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Dr Antonio Maria Perez Calero Yzquierdo (Centro de Investigaciones Energ. Medioambientales y Tecn. - (ES), Jose Flix Molina (Centro de Investigaciones Energ. Medioambientales y Tecn. - (ES)PosterExperimentThe Large Hadron Collider (LHC), in the European Laboratory for Particle Physics (CERN, Switzerland), is the largest scientific instrument ever built. It started operating in November 2009 and it has generated a few hundreds of Petabytes of raw, simulated and processed data, from all of its detectors, since the stop of the successful first run in February 2013. Managing this amount of data and...Go to contribution page
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Jorge Casalderrey Solana (University of Barcelona (ES))When high energy jets propagate through a hadronic medium, several of their partonic fragments interact simultaneously with the system. The ability of the medium to tell apart different fragments depends on a medium resolution scale, which is a property of the system. In this talk I discuss how this scale emerges from the breaking of color coherence among the different jet fragments induced by...Go to contribution page
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Juan Antonio Aguilar Saavedra (Universidad de Granada)Current limits on the mixing of the top quark with heavy partners are presented, drawing their implications for top anomalous couplings and for single production of top partners at LHC.Go to contribution page
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Caterina Vernieri (Sezione di Pisa (IT))PosterExperimentThe WZ/ZZ (VZ) associated production channel with Z decaying to bottom quarks, is one of the less reducible background for the standard model Higgs boson search in the same event topology (VH). The study of the VZ signal proposed here should be accounted as a validation of the analysis strategy developed for the VH search in the boosted regime. It is also the first attempt to measure the VZ...Go to contribution page
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Cedric DelaunayWe will discuss LHC implications of TeV scale new physics responsible for the large top forward-backward asymmetry observed at the Tevatron. We will first present generic predictions based on an effective field theory description of the top dynamics. We will then consider more specific expectations in the framework of composite Higgs models.Go to contribution page
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Mikael Rodríguez Chala (Universidad de Granada)Top and Bottom partners, predicted by Composite Higgs Models, can be singly produced through the decay of new octet resonances (heavy gluons), which are naturally present in these models whenever partial compositeness is considered. We study in detail this new production mechanism in the Ht\bar{t}, Zb\bar{b} and Hb\bar{b} channels at the LHC in a wide region of the parameter space. The sizably...Go to contribution page
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Hamed Bakhshiansohi (School of Particles and Accelerator Inst. for Res. in Fundam. S)Measurements of the top quark mass are presented, obtained from CMS data collected in 2011 and 2012 at a centre-of-mass energy of 7 TeV and 8 TeV. The mass of the top quark is measured using several methods. The results of the various channels are combined and compared to the world average. The dependence of the top-quark mass measurement on event kinematics is studied. The top mass and also...Go to contribution page
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Martin Goerner (Hamburg University (DE))Measurements of inclusive and differential top quark pair production cross section at 8 TeV are presented, performed using CMS data collected in 2012. The total cross section is measured in the lepton+jets and dilepton channels, including the tau-dilepton mode. DIfferential cross sections are measured as a function of various kinematic observables, including the transverse momentum and...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))Measurements of the top quark production cross sections in proton-proton collisions with the ATLAS detector at the Large Hadron Collider are presented. The measurement require no, one or two electrons or muons in the final state (single lepton, dilepton, hadronic channel). In addition, the decay modes with tau leptons are tested (channels with tau leptons). The main focus are measurements of...Go to contribution page
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Pamela Ferrari (NIKHEF (NL))In proton-proton collisions at the LHC, pairs of top and antitop quarks are expected to be mostly produced through gluon fusion, in contrast to production at the Tevatron, where quark annihilation dominates. Making use of the large number of top quark pairs, we present measurements of the spin correlation between top and antitop quarks as well as of the top-quark charge asymmetry which...Go to contribution page
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Adrian Irles Quiles (Universidad de Valencia (ES))This work presents a new method to measure the top-quark mass in hadronic collisions. The method uses the sensitivity of the ttbar+1Jet production on the top-quark mass. In detail we study the R distribution defined as the ttbar+1Jet normalized differential cross section in the invariant mass of the total system and calculated at NLO accuracy. We prove that the \R distribution has a...Go to contribution page
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Mrs Nameeqa Firdous (University of Innsbruck)PosterExperimentIn this work, new tunings of the PYTHIA6 Monte Carlo event generator using Minimum Bias(MB) and Underlying Event (UE) data published by the ATLAS Collaboration are presented. Altogether six parameters are varied: four parameters of the Multiple Parton Interaction model and two Lambda_QCD parameters. The fragmentation parameters are taken from tunes to ALEPH e+e- Z peak data. It is shown...Go to contribution page
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Fernando Carrio Argos (Universidad de Valencia (ES))PosterExperimentThe Tile Calorimeter (TileCal) is the hadronic calorimeter covering the most central region of the ATLAS experiment at LHC. The TileCal readout consists of about 10000 channels. Its main upgrade will occur for the High Luminosity LHC phase (phase 2) where the luminosity will have increased 5-fold compared to the design luminosity (1034 cm−2s−1) but with maintained energy (i.e. 7+7 TeV). An...Go to contribution page
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Marco Musich (INFN Torino (IT))The associated production of jets and vector bosons allows for stringent tests of perturbative QCD calculations and is sensitive to the possible presence of new physics beyond the Standard Model. Measurements of jet production rates in association with W, Z or photons, in proton-proton collisions at 7 TeV center-of-mass energy is presented, using data collected with the CMS detector....Go to contribution page
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Bhaskar Dutta (Texas A&M University)Vector Boson Fusion (VBF) processes allow us to study the non-colored sectors of supersymmetric extensions of the Standard Model at a hadron collider. I will present a feasibility study for searching for the chargino/neutralino system and sleptons in the $R-$parity conserving Minimal Supersymmetric Standard Model. The high $\ET$ forward jets in opposite hemispheres are utilized to trigger VBF...Go to contribution page
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Dr Ignasi Rosell (Universidad CEU Cardenal Herrera & IFIC, Valencia)We present a one-loop calculation of the oblique S and T parameters within strongly-coupled models of electroweak symmetry breaking with a light Higgs-like boson. We use a general effective Lagrangian, implementing the chiral symmetry breaking SU(2)_L⊗SU(2)_R → SU(2)L+R with Goldstones, gauge bosons, the Higgs-like scalar and one multiplet of vector and axial-vector massive resonance states....Go to contribution page
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Francesco Romeo (Universita e INFN (IT))We present selected measurements done with W and Z bosons performed with the CMS detector, based on samples of events collected during 2011 and 2012 physics runs. Measurements include W and Z inclusive cross sections, the lepton charge asymmetry in W events, and differential cross sections of Z and Drell-Yan production.Go to contribution page
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