Prof.
Fabio Zwirner
(University of Padova and INFN (IT))
07/07/2012, 09:00
Track 12. Formal Theory Developments
Parallel Sessions
We show that, for all tachyon-free classical Minkowski vacua with four-dimensional spontaneously broken N=8 supergravity, the one-loop effective potential is calculable and finite. We also find that, in all presently known examples, it is negative-definite.
Dr
David South
(DESY (DE))
07/07/2012, 09:20
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
A search for first generation scalar and vector leptoquarks produced in ep collisions is performed by the H1 experiment at HERA. The full H1 data sample is used in the analysis, corresponding to an integrated luminosity of 446 pb^-1. No evidence for the production of leptoquarks is observed in final states with a large transverse momentum electron or with large missing transverse momentum, and...
Dr
Katarzyna Wichmann
(DESY)
07/07/2012, 09:35
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
A search for first generation leptoquarks was performed in
polarized electron-proton collider data recorded with the ZEUS detector at HERA in the years 2003-2007.
They were analyzed for final states with an electron and jets or with
missing transverse momentum and jets and a search for resonance structures or other deviations from the Standard Model predictions in the spectra of the...
Dr
Bjorn Penning
(Fermi National Accelerator Laboratory (US))
07/07/2012, 09:50
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
We present a search for the pair production of first generation scalar leptoquarks (LQ) in data corresponding to an integrated luminosity of 5.4 fb^-1 collected with the D0 detector at the Fermilab Tevatron Collider in ppbar collisions at sqrt(s)=1.96 TeV. In the channel LQ \bar{LQ} --> e nu_e q q', where q, q' are u or d quarks, no significant excess of data over background is observed, and...
Dr
James Francis Hirschauer
(Fermi National Accelerator Laboratory (US))
07/07/2012, 10:05
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
We present results of searches with leptons, jets and missing transverse energy in the final state sensitive to the existence of leptoquarks and heavy right majorana neutrinos. The full sample of 5 fb-1 of pp collisions recorded with CMS in 2011 at the center-of-mass energy of 7 TeV has been used.
Dr
Peter Wagner
(University of Pennsylvania (US))
07/07/2012, 10:20
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
We report on searches of heavy particles decay to a pair of taus as well as a search for third-generation leptoquarks decaying to a jet and a tau lepton. The studies reported use the full data sample recorded in 2011 at sqrt(s)=7 TeV centre-of-mass energy by the ATLAS experiment at the LHC.
Prof.
Chung Kao
(University of Oklahoma (US))
07/07/2012, 10:35
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
We investigate the prospects for the discovery of massive hyper-gluons at the CERN Large Hadron Collider with $\sqrt{s} = 14$ TeV. A phenomenological Lagrangian is adopted to evaluate the cross section of a pair of colored vector bosons (colorons, $\tilde{\rho}$) decaying into four colored scalar resonances (hyper-pions, $\tilde{\pi}$), which then decay into eight gluons. We include the...
Dr
Xabier Anduaga Del Popolo
(Universidad Nacional de La Plata (AR))
07/07/2012, 11:00
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
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 lepton pairs, leptons and missing transverse energy and pairs of photons. The models considered are the Z' and W', the Randall-Sundrum gravitons as well as the ADD large extra dimension scenario. The talk presents...
Mr
Giovanni Zevi Della Porta
(Harvard University (US))
07/07/2012, 11:15
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
The study of electroweak boson pair production is a powerful test of the spontaneously broken gauge symmetry of the Standard Model (SM) and can be used to search for phenomena beyond the SM. Heavy articles decaying to gauge boson pairs are predicted by many scenarios of new physics, including Extra Dimensions, and Technicolor models. We present generic searches for a heavy particle decaying to...
Prof.
Simonetta Gentile
(Universita e INFN, Roma I (IT))
07/07/2012, 11:30
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
Searching for heavy neutral gauge bosons Z', predicted in extensions of the Standard Model based on a U' gauge symmetry, is among the main new physics investigations undertaken by the experiments at the Tevatron and at the Large Hadron Collider. We study Z' phenomenology at hadron colliders according to several U'-based models and in the Sequential Standard Model. In particular, as far as...
Dr
Dag Gillberg
(Carleton University (CA))
07/07/2012, 11:45
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
We study the mass and the angular distributions of pairs of jets and pairs of a photon and a jet to test several new physics hypotheses such as: excited quarks, quantum black holes or quark contact interactions. The most recent results will be presented.
662.
Search for new physics in events with two photons, many jets, and low missing transverse energy
Dr
Marc Gabriel Weinberg
(Florida State University (US))
07/07/2012, 12:00
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
Many supersymmetric and exotic models of new physics predict high-multiplicity events with leptons or electroweak gauge bosons and low missing transverse energy in the final state. We present results of a search for new physics at CMS in events with two photons and many hadronic jets with no requirement for large missing transverse energy.
Prof.
Claudia Wulz
(Austrian Academy of Sciences (AT))
07/07/2012, 12:15
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
We present results of searches for new heavy gauge bosons decaying to dilepton, diphoton, lepton+MET, WZ, and ZZ final states. The full sample of 5 fb-1 of pp collisions at 7 TeV collected with CMS in 2011 have been analyzed as well as the new collisions recorded at 8 TeV in 2012.
Dr
Andreas Hinzmann
(CERN)
07/07/2012, 12:30
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
We present results of searches for new heavy resonances decaying in hadronic final states. A variety of final states ranging from 2 jets up to 8 jets have been analyzed using the sample of 5 fb-1 of pp collisions at 7 TeV collected with CMS in 2011.
Prof.
Ming-Chuan Chang
(Fu Jen Catholic University (TW))
07/07/2012, 13:45
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
Many extensions of the Standard Model introduce additional Higgs fields that include one or more dark Higgs bosons to the interactions. Such a gauge boson, also known as a dark photon, typically has very weak coupling to Standard Model particles. Experimental results from direct dark matter searches (e.g., DAMA/LIBRA) and other experimental anomalies (e.g., $g-2$) can be explained by such an...
SARAH MALIK
(UNIVERSITY COLLEGE LONDON),
Sarah Malik
(Rockefeller University (US))
07/07/2012, 14:00
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
We present the results of searches for dark matter performed using data collected by the CMS experiment at the LHC in pp-collisions at a center-of-mass energy of 8 TeV. Searches for dark matter candidates are performed in events with missing transverse energy. Traditionally, searches for supersymmetry (SUSY), where the lightest SUSY particle is a good candidate for dark matter, have been...
Dr
Adrian Bevan
(Queen Mary University of London (UK))
07/07/2012, 14:15
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
Recent astrophysical observations have motivated interest in models with a new, dark sector containing GeV-scale gauge and Higgs bosons. In such models, dark-sector photons typically mix with the standard-model photon, enabling their detection in e+e- collisions at BABAR, with very little background in many of the channels. We present searches for a dark-sector photon and a dark-sector Higgs...
Dr
David Salek
(CERN)
07/07/2012, 14:30
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
Events composed of one high transverse energy jet and large missing transverse momentum represent one of the simplest and most striking signatures that can be observed at a hadron collider. The Standard Model contribution to such 'monojet' events is dominated by a Z decaying to a pair of neutrinos plus a recoiling jet. Several new physics models predict monojet events. They can occur via...
Mr
Sandy Law
(National Cheng Kung University (TW))
07/07/2012, 14:45
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
We demonstrate that by adding three exotic fermion 5-plets and one scalar 6-plet to the standard model, a consistent solution to the problems of baryon asymmetry, dark matter and neutrino mass can be obtained. This is possible because renormalizability and standard model gauge invariance allow the lightest exotic particle in this model to be a dark matter candidate if the new 6-plet scalar...
Dr
Archil Kobakhidze
(University of Melbourne (AU))
07/07/2012, 15:00
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
Classical scale invariance maybe responsible for the quantum stability of the electroweak scale. We discuss realistic scale-invariant extensions of the Standard Model and the related phenomenology
Dr
Souza Santos Angelo
(LAFEX, Centro Brasieiro de Pesquisas Fiscicas (BR))
07/07/2012, 15:45
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
We present a search for Kaluza-Klein (KK) particles predicted by models with universal extra dimensions (UED) using a data set corresponding to an integrated luminosity of 7.3 fb^-1, collected by the D0 detector at a pp center of mass energy of 1.96 TeV. The decay chain of KK particles can lead to a final state with two muons of the same charge. This signature is used to set a lower limit on...
Dr
Alessio Bonato
(CERN)
07/07/2012, 16:00
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
We present results for searches of the existence of large extra spatial dimensions. A variety of final states sensitive to both resonant and non-resonant enhancement of expected events have been analyzed. The full sample of 5 fb-1 of pp collisions recorded with CMS in 2011 at the center-of-mass-energy of 7 TeV has been used.
Mr
Callen Benjamin
(University of Melbourne (AU))
07/07/2012, 16:15
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
We propose an extension of the 4+1D $SU(5)$ domain-wall braneworld of Davies, George and Volkas which includes the addition of a discrete $A_4$ flavor symmetry. We show that lepton mixing and light Majorana neutrino masses can be generated from the additional $A_{4}$ physics while at the same time sufficient parameter freedom can be maintained in the charged fermion sector to produce charged...
Dr
Amarjit Soni
(Brookhaven National Laboratory (US))
07/07/2012, 16:30
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
Taking the indications for the lightish Higgs from the LHC experiments along with no signs
of anything else new to about the TeV scale seriously and focusing on warped models, itโd appear that
except for a radion/dilaton all other manifestations of KK-modes are a lot heavier in simplest models.
Implications of such a radion will be discussed and what this scenatio may mean for the...
Dr
Kerstin Hoepfner
(Rheinisch-Westfaelische Tech. Hoch. Aachen (DE))
07/07/2012, 16:45
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
We present results of searches for compositeness and contact interactions in decays of excited quarks and leptons and inclusive spectra. The full data sample of 5 fb-1 of pp collisions collected in 2011 at a center-of-mass energy of 7 TeV with the CMS experiment have been used.
Mr
Michele (CH) Redi
(CERN)
07/07/2012, 17:00
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
In this talk I will describe the implications of a 125 GeV Higgs in Composite Higgs Models.
I will focus on the most relevant scenario where the Higgs is a pseudo-Goldstone boson and Standard Models fields are partially composite. Several models can be constructed characterized by the global symmetries and fermionic content of the composite sector. The Higgs can be light (~125 GeV) for a...
Eram Syed Rizvi
(Queen Mary, University of London)
07/07/2012, 17:20
Track 3 - BSM - Non-SUSY Exotics
Parallel Sessions
A search for physics beyond the Standard Model in neutral current deep inelastic scattering at high negative four-momentum transfer squared Q2 is performed in ep collisions at HERA. The differential cross section d\sigma/dQ2 , measured using the full H1 data sample corresponding to an integrated luminosity of 446 pb-1, is compared to the Standard Model prediction. No signicant deviation is...
