The top-charm frontier at the LHC

14 Jan 2014, 09:00 → 17 Jan 2014, 18:00 Europe/Zurich

4/3-006 - TH Conference Room (CERN)

Adam Orion Martin, Alex Tapper (Imperial College Sci., Tech. & Med. (GB)), Andreas Weiler (CERN), Gian Giudice (CERN), Gilad Perez (CERN & Weizmann), Giuliano Panico, Guy Wilkinson (University of Oxford (GB)), Michelangelo Mangano (CERN), Tobias Golling (Yale University (US))

Charm physics at the LHC offers exciting prospects to probe beyond the Standard Model phenomena. Particularly interesting is the connection between the top and the charm, as they belong to the same flavour representation, thus creating a potential link between top-charm physics and the dynamics of extended sectors of the SM responsible for the stabilization of the electroweak scale. The charm quark, on the other hand, poses difficult challenges to both the experimental measurements, and their theoretical interpretation. Its not-so-heavy mass limits the precision of theoretical predictions for processes like flavour-changing neutral currents or CP violation, as well as predictions for its production dynamics. Experimentally, charm jets interpolate between ordinary QCD jets and b-jets in their physical properties, and are therefore hard to identify.

The LHC experiments have now proven their ability tag high-pt charm jets, a significant milestone in improving their sensitivity to non-standard model charm physics. In addition, the LHCb experiment is in a position to significantly improve its sensitivity to CP violation in D-Dbar mixing this year. It is therefore a timely moment to analyze the experimental and theoretical status of non-standard charm physics.

This CERN-TH/LPCC workshop will bring together experimental and theory experts from the various frontiers relevant to top and charm physics, to cover all aspects of charm identification, charm production via SM and BSM processes, charm decays, and BSM model building related to charm quarks. The goal is to discuss how the expected experimental progress might lead to improve our sensitivity to new physics using the existing LHC data, as well as in view of the next LHC run.

Tuesday, 14 January

09:30 → 10:00 Coffee break

10:00 → 10:10 Official opening

Speaker: Gilad Perez (CERN & Weizmann)

10:10 → 10:40 Opening talk

Speaker: Yosef Nir (Weizmann Institute of Science (IL))

Slides YossiNir_140114_tc_2.pdf

10:40 → 11:00 Discussion

11:00 → 12:10 QCD theory

11:00 High pT charm production

Speaker: Michelangelo Mangano (CERN)

Slides Mangano_charm.pdf

11:30 discussion

11:40 PDFs and charm physics

Speaker: Juan Rojo Chacon (CERN)

12:00 Discussion

14:00 → 15:30 Charm, QCD experiment

14:00 W+c cross section, ATLAS

Speaker: Georges Aad (Centre National de la Recherche Scientifique (FR))

Slides Wc_Atlas.pdf

14:20 Discussion

14:30 W+c cross section, CMS

Speaker: Maria Cepeda Hermida (University of Wisconsin (US))

Slides BACKUPSLIDES_WC_CMS

14:50 Discussion

15:00 New LHCb measurement: Z+D-meson cross section

Speaker: Albert Bursche (University of Zurich)

15:20 Discussion

15:30 → 16:00 Coffee break

16:00 → 17:30 Top partners physics

16:00 Stop searches LHC

Speaker: Filip Moortgat (CERN)

16:20 Discussion

16:30 Composite top partners, theory

Speaker: Prof. Andrea Wulzer (Padova)

Slides slides_wulzer.pdf

16:50 Discussion

17:00 Top partner searches at the LHC

Speaker: Gerrit Van Onsem (Vrije Universiteit Brussel - Interuniversity Institute for High Energies (BE))

17:20 Discussion

17:30 → 18:00 Top flavor violation

17:30 tFCNC, THEORY

Speaker: Jure Zupan (University of Cincinnati)

17:50 Discussion

18:00 → 19:00 Reception

Wednesday, 15 January

09:30 → 10:00 Coffee break

10:00 → 12:30 Top flavor violation

10:00 tFCNC at ATLAS (non-Higgs)

Speakers: Nuno Castro (LIP), Nuno Filipe Castro (LIP - Laboratório de Instrumentação e Física Experimental de Partículas, Portugal)

backup supporting slides backup_slides.pdf

10:20 Discussion

10:30 tFCNC at CMS (non-Higgs)

Speaker: Jeremy Andrea (Institut Pluridisciplinaire Hubert Curien (FR))

10:50 Discussion

11:00 thc recast

Speaker: Nathaniel Craig

11:20 thFCNC, CMS

Speaker: Peter Thomassen (Rutgers, State Univ. of New Jersey (US))

Slides 2014-01-15_CMS_tch.pdf

11:40 Discussion

11:50 thFCNC, ATLAS

Speakers: Jean-Baptiste De Vivie De Regie (Faculte des Sciences de Luminy), Mr Jean-Baptiste De Vivie De Regie (Universite de Paris-Sud 11 (FR))

Slides supporting slides

12:10 Discussion

14:00 → 15:00 TH general seminar: flavorful naturalness & the top charm front

Speaker: Gilad Perez (CERN & Weizmann)

Slides Gilad_Perez_Flavorful.pdf

15:00 → 15:30 Coffee break

15:30 → 16:30 Higgs & charm

15:30 Charming the Higgs

Speaker: Yotam Soreq (WIS)

15:50 Discussion

16:00 Higgs boson decays to quarkonia and the Hccbar coupling

Speaker: Frank Petriello (Northwestern University)

16:20 Discussion

16:30 → 17:00 Higgs FCNC

16:30 Composite Higgs flavor violaion

Speaker: Aleksandr Azatov (C)

16:50 Discussion

Thursday, 16 January

10:30 → 11:00 Coffee break

11:00 → 12:00 Xtalk: charm tagging in ATLAS & CMS

Speakers: Daniel Hay Guest (Yale University (US)), Tristan Arnoldus Du Pree (Universite Catholique de Louvain (BE))

14:00 → 15:00 cFCNC, from theory to measurements: Theory

14:00 Theory of CPV in Delta c=2

Speaker: alexander kagan (university of Cincinnati)

14:20 Discussion

14:30 Current status of CPV in Delta c=2

Speaker: Luca Silvestrini (INFN Rome)

14:50 Discussion

15:00 → 15:30 Coffee Break

15:30 → 16:30 cFCNC, from theory to measurements: Experiments

15:30 Direct charm CPV at LHCb

Speaker: Evelina Mihova Gersabeck (Ruprecht-Karls-Universitaet Heidelberg (DE))

15:50 Discussion

16:00 Mixing-related charm CPV at LHCb

Speaker: Dr Walter Bonivento (INFN Cagliari (IT))

16:20 Discussion

16:30 → 18:20 From microscopic flavor physics to LHC implications

16:30 From cCPV to High pT

Speaker: Jernej Kamenik (Jozef Stefan Institute)

16:50 Discussion

17:00 Composite first two generation

Speaker: Michele Redi (Universita e INFN (IT))

Slides Charm-Top.pdf

17:20 Discussion

17:30 Non-degenerate Squarks from Flavored Gauge Mediation

Speaker: Dr Robert Ziegler (LPTHE Jussieu)

17:50 Discussion

Friday, 17 January

09:30 → 10:00 Coffee break

10:00 → 12:00 Beyond first two generation partner's degeneracy

10:00 Non-degenerate light squarks

Speaker: Joshua Thomas Ruderman (UC Berkeley)

10:20 Discussion

10:30 Non-degenerate composite light partners

Speaker: Juan Gonzalez Fraile (Universitat de Barcelona)

10:50 Discussion

11:00 Non-degenerate light squarks at LHC

Speaker: Mr Nikola Makovec (Universite de Paris-Sud 11 (FR))

11:20 Discussion

11:30 Non degenerate light partners, VLQ searches, at ATLAS

Speaker: Samuel Ross Meehan (University of Chicago (US))

11:50 Discussion

14:00 → 15:20 Stop flavor violation

14:00 Compressed stop -> charm searches at ATLAS

Speaker: Daniel Hay Guest (Yale University (US))

14:20 Charm calibration at ATLAS

Speaker: Hannah Ruth Arnold (Albert-Ludwigs-Universitaet Freiburg (DE))

Slides LPCCWorkshop_170114__backupSlides.pdf

14:40 Discussion

14:50 Compressed stop -> charm searches at CMS

Speaker: Robyn Lucas (Imperial College Sci., Tech. & Med. (GB))

Slides stop_LSP.pdf

15:10 Discussion

15:20 → 15:50 Coffee break

15:50 → 16:20 Gluino flavor violation

15:50 Preliminary: bounding gluino flavor violation

Speaker: Benjamin Fuks (Institut Pluridisciplinaire Hubert Curien (FR))

16:10 Discussion

16:20 → 16:50 Conclusions & outlook

Speakers: Thomas Le Compte (Argonne National Laboratory (US)), Thomas Le Compte (Argonne National Laboratory (US))

Slides Summary.pdf Summary.ppt

16:50 → 17:00 Discussion