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The 21st Workshop of the LHC Higgs Working Group

from Wednesday, December 4, 2024 (9:00 AM) to Friday, December 6, 2024 (5:30 PM)


        : Sessions
    /     : Talks
        : Breaks
Dec 4, 2024
Dec 5, 2024
Dec 6, 2024
AM
9:00 AM
Opening and joint LHC EFT / LHC Higgs plenary - Ramona Groeber (University and INFN Padova) (until 10:30 AM)
9:00 AM Workshop opening - Julie Malcles (IRFU-CEA, Université Paris-Saclay)  
9:15 AM LHCb meets the LHC Higgs WG (10'+5') - Davide Zuliani (University and INFN Padova)  
9:30 AM EFT/Higgs Experimental Summary (20'+10') - Tae Hyoun Park (Max-Planck Institute for Physics)  
10:00 AM EFT Meets Cosmology (20'+10') - Johan Löfgren (Uppsala)  
10:30 AM --- Coffee break ---
11:00 AM
Joint LHC EFT / LHC Higgs plenary - Anke Biekoetter (JGU Mainz) (until 12:45 PM) (31/3-004 - IT Amphitheatre)
11:00 AM STXS Predictions (12'+3') - Ken Mimasu (University of Southampton)  
11:15 AM EFT Interpretation of CMS VH(bb) (15'+5') - Alessandro Calandri (ETH Zuerich)  
11:35 AM Running Effects in Higgs SMEFT (15'+5') - Stefano Di Noi (KIT)  
11:55 AM SMEFiT (15'+5') - Luca Mantani (IFIC Valencia)  
12:15 PM SMEFT/Higgs Experimental Outlook (20'+10') - Giacomo Boldrini (LLR Palaisau - CNRS)  
9:00 AM
WG1 parallel session - Alexander Karlberg (CERN) Alessandro Calandri (ETH Zuerich) (until 12:22 PM) (40/S2-A01 - Salle Anderson)
9:00 AM Higgs+charm ATLAS (10'+10') - Elliot Reynolds (University of Kansas)  
9:20 AM Higgs+charm CMS (10'+10') - Tiziano Bevilacqua (University of Zuerich)  
9:40 AM yt-induced Hbb as a background for HH searches (17'+5') - Marco Zaro (Università degli Studi and INFN Milano)  
10:02 AM ttHbb highlights/summary of the WG1 - ttH/tH workshop (10'+10') - Matthias Schroeder (University of Hamburg)  
10:22 AM Updated ttHbb results ATLAS (10'+10') - Alexander Froch (Université de Genève)  
10:42 AM VHcc ATLAS+CMS focusing on modelling uncertainties (20'+10') - Zhuoran Feng (Nikhef)  
11:12 AM VHbb ATLAS+CMS focusing on modelling uncertainties (20'+10') - Christina Reissel (MIT)  
11:42 AM PDF uncertainties on predictions for Higgs production in gluon-gluon fusion (15'+5') - Maria Vittoria Garzelli (University of Hamburg)  
9:00 AM
WG2 parallel session - Daniele Barducci (University and INFN Pisa) Pier Paolo Giardino (UAM and IFT Madrid) (until 12:00 PM) (40/S2-C01 - Salle Curie)
9:00 AM Exotic decays of Higgs bosons to LLPs (ATLAS and CMS) - Dominique Trischuk (Brandeis University)  
9:25 AM A log story short: running contributions to radiative Higgs decays in SMEFT (20'+5') - Guilherme Guedes (DESY)  
9:50 AM Interference effects in gg→H→Zγ beyond Leading Order (20'+5') [remote] - Federico Buccioni (Technical University of Munich)  
10:15 AM --- Short coffee break ---
10:35 AM CP-sensitive observables in STXS ttH cross sections (20'+5') - Alberto Carnelli (IRFU Saclay - CNRS)  
11:00 AM Probing CPV with DPhijj in H→WW (ATLAS) (20'+5') [remote] - Cameron Clarry (University of Toronto)  
11:25 AM Off-shell coupling measurements (CMS) (20'+5') - Andrei Gritsan (Johns Hopkins)  
9:00 AM
WG3 parallel session - Tatjana Lenz (University of Bonn) Rui Santos (ISEL and CFTC-UL) (until 12:22 PM)
9:00 AM Rare and Exotic Higgs decays in CMS (15'+3') - Lakshmi Pramod (DESY)  
9:18 AM Rare and exotic Higgs decays in ATLAS (15'+3') - Diallo Boye (Brookhaven National Laboratory)  
9:36 AM LLPs from Exotic Higgs decays using faraway sub-detectors (15'+3') - Nathan Grieser (University of Cincinnati)  
9:54 AM Higgs Mass Predictions in the CP-Violating High-Scale NMSSM (15'+3') - Christoph Borschensky (KIT)  
10:12 AM Recent developments in NMSSMCALC (15'+3') [remote] - Martin Gabelmann (DESY)  
10:30 AM --- Short coffee break ---
10:50 AM MSSM Higgs boson production via gluon fusion (15'+3') - Michael Spira (Paul Scherrer Institute)  
11:08 AM Updates on charged Higgs cross sections (15'+3') - Emanuele Angelo Bagnaschi (INFN Frascati)  
11:26 AM Extended scalars and dark matter (15'+3') - Rui Santos (ISEL and CFTC-UL)  
11:44 AM Higgs to dark showers (15'+3') - Emre Sitti (ETH Zuerich)  
12:02 PM Recasting in resonant di-Higgs searches (15'+3') - Daniele Barducci (University and INFN Pisa)  
9:30 AM
WG4 parallel session - Arantxa Ruiz Martinez (IFIC Valencia) Milada Margarete Muehlleitner (KIT) (until 12:00 PM)
9:30 AM Introduction - Milada Margarete Mühlleitner (KIT) Ludovic Michel Scyboz (Monash University) Fabio Monti (CERN) Arantxa Ruiz Martinez (IFIC Valencia) Stefano Manzoni (CERN)  
9:40 AM Triple Higgs searches in ATLAS - William Balunas (University of Cambridge)  
10:00 AM Overview of triple Higgs theory - Tania Natalie Robens (Rudjer Boskovic Institute)  
10:30 AM Multi-Higgs Production and the Electroweak Phase Transition - Osama Karkout (Nikhef)  
10:50 AM Effect of anomalous HHH and ZZHH couplings on the decay width of H→4l [remote] - Biswajit Das (The Institute of Mathematical Sciences, Chennai)  
11:10 AM Double Higgs production in vector boson fusion at NLO QCD with anomalous couplings - Jens Braun (KIT)  
11:30 AM Multi-Higgs production from VBS in HEFT (15'+5') - Javier Martínez Martín (Universidad Complutense de Madrid & IPARCOS)  
9:00 AM
Cross-topic plenary - Fabrizio Arturo Caola (University of Oxford) (until 11:35 AM)
9:00 AM Updates from PDF global fits (20'+10') - Joey Huston (Michigan State University)  
9:30 AM STXS Overview (15'+5') [remote] - Matteo Bonanomi (University of Hamburg)  
9:50 AM Finite Width and Interference (15'+5') - Georg Ralf Weiglein (DESY)  
10:45 AM --- Coffee break ---
11:15 AM Accessing the Electroweak Phase Transition through Top Quark and Higgs Boson Production (15'+5') - Lisa Biermann (Paul Scherrer Institute)  
11:35 AM
Plenary (WG4) - Fabio Monti (CERN) Stefano Manzoni (CERN) Ludovic Michel Scyboz (Monash University) (until 1:05 PM) (4/3-006 - TH Conference Room)
11:35 AM Overview of HH searches at ATLAS - Arantxa Ruiz Martinez (IFIC Valencia)  
11:50 AM Overview of HH searches at CMS - Torben Lange (National Institute of Chemical Physics and Biophysics, Tallinn)  
12:05 PM VBF HH with Powheg - Simon Reinhardt (University of Tuebingen)  
12:25 PM NLO EW corrections on gg→HH cross section [remote] - Huai-Min Yu (Peking University)  
12:45 PM Resonant HH production: interference effects and higher-order corrections - Kateryna Radchenko Serdula (DESY)  
PM
12:45 PM --- Lunch break ---
2:00 PM
Plenary (WG1) - Alexander Karlberg (CERN) Alessandro Calandri (ETH Zuerich) (until 3:30 PM)
2:00 PM Introduction - Bernhard Mistlberger (SLAC) Hannah Arnold (Stony Brook University) Alexander Karlberg (CERN) Alessandro Calandri (ETH Zuerich)  
2:10 PM ggF status report (17'+5') - Alessandra Cappati (Université Catholique de Louvain) Robin Hayes (Nikhef)  
2:32 PM VBF status report (17+5') [remote] - Jiayi Chen (Simon Fraser University)  
2:54 PM VH status report (17'+5') - Matthew Lim (University of Sussex)  
3:30 PM --- Coffee break ---
4:00 PM
Plenary (WG3) - Tatjana Lenz (University of Bonn) Rui Santos (ISEL and CFTC-UL) (until 5:30 PM)
4:00 PM MSSM working group summary (15'+3') - Emanuele Angelo Bagnaschi (INFN Frascati)  
4:18 PM bbH: subgroup report and NNLO+PS generators in the massless and massive schemes (15'+3') - Christian Biello (Max-Planck Institute for Physics)  
4:36 PM NMSSM subgroup report (15'+3') - Milada Margarete Muehlleitner (KIT)  
4:54 PM Exotic decays subgroup: Axion-like particle connections to the Higgs and top (15'+3') - Anke Biekoetter (JGU Mainz)  
5:12 PM Extended scalar sector subgroup report (15'+3') - Khawla Jaffel (University of Science and Technology of China)  
12:30 PM --- Lunch break ---
2:00 PM
Plenary (WG1) + Future colliders - Alessandro Calandri (ETH Zuerich) Alexander Karlberg (CERN) (until 3:30 PM) (31/3-004 - IT Amphitheatre)
2:00 PM ttH/tH status report (17'+5') - Judith Katzy (DESY)  
2:22 PM Off-shell status report (17'+5') - Raoul Horst Roentsch (Università degli Studi and INFN Milano)  
2:44 PM BR status report (10'+5') - Michael Spira (Paul Scherrer Institute)  
3:00 PM Higgs physics at future colliders (20'+10') - Matthew Philip McCullough (CERN)  
3:30 PM --- Coffee break ---
4:00 PM
Plenary (WG2) - Daniele Barducci (University and INFN Pisa) (until 5:30 PM) (31/3-004 - IT Amphitheatre)
4:00 PM Measurements of Higgs couplings to fermions and interpretations of Higgs XS measurements at ATLAS and CMS (17'+5') - Jelena Jovicevic (Institute of Physics, University of Belgrade)  
4:22 PM Measurements of Higgs couplings to bosons at ATLAS and CMS (17'+5') [remote] - Jeffrey Davis (Johns Hopkins)  
4:44 PM BSM & SMEFT Interpretation of Higgs measurements at LHC and HL-LHC (17'+5') - Ken Mimasu (University of Southampton)  
5:06 PM Non-linear CP violation (17'+5') [remote] - Akanksha Bhardwaj (Oklahoma State University)  
7:30 PM
Workshop dinner (until 10:30 PM)
1:05 PM --- Lunch break ---
2:00 PM
Lightning session for LHCHWG Report 5 - Liza Brost (Brookhaven National Laboratory (US)) Katharine Leney (Southern Methodist University) (until 3:30 PM)
2:00 PM WG3: Rare and Exclusive Higgs boson decays (7'+3') - Van Dung Le (Ho Chi Minh City University) David d'Enterria (CERN)  
2:10 PM WG3: Intelligent Scans in the NMSSM at Highest Precision (7'+3') - Felix Egle (KIT) Felix Egle (DESY)  
2:20 PM WG1: Parton shower aspects of Vector Boson Fusion Higgs production (7'+3') [remote] - Jiayi Chen (Simon Fraser University)  
2:30 PM WG1: Resummed predictions for VH (7'+3') [remote] - Kajal Samanta (IPPP Durham)  
2:40 PM WG1: NLO ggZH differential prediction (7'+'3') [remote] - Marco Vitti (KIT)  
2:50 PM WG2: Recommendation for ATLAS + CMS full-likelihood publications (7'+3') [remote] - Nicholas Wardle (Imperial College)  
3:00 PM WG2: CPV STXS, CPV benchmark call in BSM models and dictionary note on different CPV parametrizations (7'+3') [remote] - Henning Bahl (Heidelberg University)  
3:10 PM WG4: HH physics at 14 TeV (15'+5') [remote] - Javier Mazzitelli (Paul Scherrer Institute)  
3:30 PM --- Coffee break ---
4:00 PM
Summary and closeout - Mauro Donega (ETH Zuerich) (until 5:30 PM) (4/3-006 - TH Conference Room)
4:00 PM WG1 Higgs XS&BR: Outlook and Plans (10'+5') [remote] - Hannah Arnold (Stony Brook University)  
4:15 PM WG2 Higgs Properties: Outlook and Plans (10'+5') - Pier Paolo Giardino (UAM and IFT Madrid)  
4:30 PM WG3 BSM Higgs: Outlook and Plans (10'+5') - Tatjana Lenz (University of Bonn)  
4:45 PM WG4 HH and multi-Higgs: Outlook and Plans (10'+5') - Fabio Monti (CERN)  
5:00 PM Closing words from the Steering Committee (10'+5') - Ennio Salvioni (University of Sussex)  
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