The 16th Workshop of the LHC Higgs Cross Section Working Group
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Europe/Zurich
503/1-001 - Council Chamber (CERN)
Description
The LHC Higgs cross-section working group (HXSWG) was created in January 2010. The aim of this group was to produce agreements on cross sections, branching ratios and pseudo-observables relevant to SM and MSSM Higgs boson(s). In spring 2012, the group was restructured and new subgroups were added with the goal of discussing Higgs property/measurement and BSM extensions. Four CERN Reports have been completed, "Inclusive Observables" (CERN-2011-002), "Differential Distributions" (CERN-2012-002), "Higgs Properties" (CERN-2013-004) and "Deciphering the nature of the Higgs Sector" (CERN-2017-002). This 16th general meeting will be an occasional to decide the future direction of the group. Similar to the previous workshop, this meeting will be half a day longer, in order to allocate a discussion session in the afternoon of October 17th. The discussion session is conceived to have some time to cover in more depth (technical) issues which, for lack of time, are usually either skipped or treated very quickly during our plenary meetings. Each WG will organise their own (parallel) discussion session. A summary of each discussion will be provided in the final session on Friday.
Registration
Registration Form
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Participants
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09:00
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Welcome and introduction 10m
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Vector boson fusion 15mSpeaker: Dr Alexander Karlberg (Universitaet Zuerich (CH))
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ttH/tH: EXP 15mSpeakers: Joshuha Thomas-Wilsker (Institute Of High Energy Physics, Beijing), Dr Maria Moreno Llacer (Univ. of Valencia and CSIC (ES))
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Plenary: WG1+WG2: STXS 503/1-001 - Council Chamber
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VBF STXS uncertainties 15mSpeaker: Yacine Haddad (Northeastern University (US))
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VH STXS uncertainties 15mSpeaker: Chris Palmer (Princeton University (US))
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ggF STXS uncertainties 15mSpeaker: Syed Haider Abidi (University of Toronto (CA))
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Experimental summary 25m
Experimental overview of recent fiducial, differential and STXS measurements by ATLAS and CMS, and their interpretations (kappa, EFT)
Speaker: Hongtao Yang (Lawrence Berkeley National Lab. (US)) -
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Higgs EFT parameterisation efforts 25mSpeaker: Chris Hays (University of Oxford (GB))
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Higgs + top EFT interpretations 25mSpeaker: Ken Mimasu (Particle Physics-Rutherford Appleton Laboratory-STFC - Science &)
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Coffee break 30m
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Higgs + multi-boson EFT interpretations 25mSpeaker: Marc Riembau (Universite de Geneve (CH))
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16:40
Automated matching at 1-loop for EFTs 25mSpeakers: Adrian Carmona (CERN), Adrian Carmona Bermudez (Universidad de Granada (ES))
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Motivation for differential observables 25mSpeakers: Frank Tackmann, Frank Tackmann (Deutsches Elektronen-Synchrotron (DE))
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Introduction 10m
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Summary of "Extended Higgs Sector" group activities 30mSpeaker: Rui Santos (ISEL)
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Summary of "Exotic Higgs Decays" group activities 30mSpeaker: Cecile Sarah Caillol (University of Wisconsin Madison (US))
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Summary of "MSSM" group activities 30mSpeaker: Andrew Gilbert (Northwestern University (US))
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10:40
Higgs and Long-Lived Particles 30mSpeaker: Matthew Daniel Citron (Univ. of California Santa Barbara (US))
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Coffee Break 30m
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Recommendations for the presentation of auxiliary information in BSM Higgs searches 20mSpeaker: Sven Heinemeyer (CSIC (Madrid, ES))
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Summary of "NMSSM" group activities [vidyo] 30mSpeaker: Milada Muhlleitner (KIT - Karlsruhe Institute of Technology (DE))
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Summary of the activities of the LHC DM WG [vidyo] 30mSpeaker: Philip Coleman Harris (Massachusetts Inst. of Technology (US))
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Convener: Marius Wiesemann (Max-Planck-Institut fur Physik (DE))
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bbH final status 30mSpeaker: Marius Wiesemann (Max-Planck-Institut fur Physik (DE))
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EFT parameterisation and Higgs total width in SMEFT 30mSpeaker: Ilaria Brivio (University of Heidelberg)
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EFT parameterisation of STXS (CMS) 10mSpeaker: Jonathon Mark Langford (Imperial College (GB))
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EFT parameterisation of STXS (ATLAS) 10mSpeaker: Ana Rosario Cueto Gomez (Centre National de la Recherche Scientifique (FR))
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Discussion 10m
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EFT parameterisation tools within ATLAS/CMS 20mSpeaker: Andrew Gilbert (Northwestern University (US))
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Overview of resonant HH searches at ATLAS and CMS 15mSpeaker: Daniel Guerrero (University of Florida (US))
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Double Higgs final states in Singlet Extensions of the SM [vidyo] 15mSpeaker: Milada Margarete Mühlleitner
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HH production for scalar Higgs sector extensions [vidyo] 15mSpeaker: Christoph Peter Englert (University of Glasgow (GB))
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2HDM+S and the NMSSM: benchmark suggestions for HH production [vidyo] 15mSpeakers: Nausheen Shah (Wayne State University), Sebastian Baum (Stockholm University and Oskar Klein Centre)
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Parallel Sessions: WG-1 (parton shower) 60/6-015 - Room Georges Charpak (Room F)
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A fragmentation-based study of heavy quark production 20mSpeaker: Marco Zaro (Nikhef)
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ATLAS/CMS comparisons for the main ttH/tH backgrounds 20mSpeaker: Kirill Grevtsov (Deutsches Elektronen-Synchrotron (DE))
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Parton shower studies in WG1-VBF 15mSpeaker: Yacine Haddad (Northeastern University (US))
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Summary of Les Houches studies 15mSpeaker: Carlo Enrico Pandini (CERN)
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Discussion on the use of HXS4BSM numbers (WG3 + VBF) 1hSpeaker: Dermot Anthony Moran (Centro de Investigaciones Energéti cas Medioambientales y Tecno)
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WG3 Discussion: Recommendations for the presentation of auxiliary information in the Run-2 legacy papers 1h 15m
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Parallel Sessions: joint WG2 - HH 40/S2-B01 - Salle Bohr
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Experimental challenges in H and HH EFT fits 20mSpeaker: Francesco Micheli (Eidgenoessische Tech. Hochschule Zuerich (ETH))
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EFT fits and self-coupling extraction in H and HH: theory overview 20mSpeaker: Eleni Vryonidou (CERN)
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Motivation for differential observables - follow-up 20mSpeakers: Frank Tackmann, Frank Tackmann (Deutsches Elektronen-Synchrotron (DE))
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Extending STXS with final state information 40mSpeakers: Michael Duehrssen-Debling (CERN), Nicolas Berger (Centre National de la Recherche Scientifique (FR))
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Parallel Sessions: HH 60/6-015 - Room Georges Charpak (Room F)
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Overview of HH MC generators in ATLAS and CMS 20mSpeaker: Xiaohu Sun (University of Manchester (GB))
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Discussion 40m
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Workshop dinner
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Review of HH cross section computations and uncertainties 20mSpeaker: Javier Mazzitelli
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Experimental overview of HH at the LHC 30mSpeaker: Arnaud Ferrari (Uppsala University (SE))
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WG1 discussion summary 30m
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WG2 discussion summary 30m
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WG3 discussion summary 30m
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HH discussion summary 30m
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Theory developments and uncertainty projections for future Higgs measurements 30mSpeaker: Dr Pier Monni (CERN)
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EW/Higgs physics at Future Colliders: Studies for the Update of the European Strategy for Particle Physics 30mSpeaker: Jorge de Blas (Universita e INFN, Padova (IT))
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BSM Higgs at HL-LHC and Future Colliders 30mSpeaker: Zhen Liu
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Closing 15m
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