Higgs Hunting 2023
200/0-Auditorium - Auditorium P. Lehmann
IJCLab
The origin of Electroweak symmetry breaking is one of the central topics of research in fundamental physics. The discovery of a Higgs boson at CERN on July 4th, 2012, following a hunt that spanned several decades and multiple colliders, changed the landscape of these investigations and provided key evidence for the Brout-Englert-Higgs mechanism of mass generation through the spontaneous breaking of Electroweak symmetry.
Almost ten years later, the hunt goes on several fronts, in particular for:
- New physics through precision studies of the properties of the Higgs boson : in particular its mass, spin and couplings to other Standard Model particles.
- New production and decay modes, in particular in processes involving multiple Higgs bosons which provide key insight into the shape of the Higgs potential.
- New Higgs-like states and signals for physics beyond the Standard Model.
The 13th workshop of the « Higgs Hunting » series organized on September 11-13th, 2023 will present an overview of these topics, focusing in particular on new developments in the LHC Run-2 analyses, detailed studies of Higgs boson properties and possible deviations from Standard Model predictions. Highlights will also include a first look at LHC Run-3 analyses, prospects from studies at future colliders, and recent theoretical developments.
The workshop will be held in person in Orsay, for the first day, and Paris, for the two following days, to continue the Higgs Hunting tradition of lively discussions during and after the sessions. Remote participation will also be made possible for those unable to attend in person. No registration fees are asked for remote participation.
Zoom link: https://ijclab.zoom.us/j/94890955802
More information on her achievements can be found at https://en.wikipedia.org/wiki/Meenakshi_Narain |
Registration deadline: September 5th, 2023

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Registration (with coffee and croissants) 1h 25m 200/0-Auditorium - Auditorium P. Lehmann
200/0-Auditorium - Auditorium P. Lehmann
IJCLab
IJCLab Orsay (Monday) & LPNHE Paris (Tuesday & Wednesday)236Montrer la salle sur la carte -
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Prelude by the organizers 5m 200/0-Auditorium - Auditorium P. Lehmann
200/0-Auditorium - Auditorium P. Lehmann
IJCLab
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Plenary: Theory overview 200/0-Auditorium - Auditorium P. Lehmann
200/0-Auditorium - Auditorium P. Lehmann
IJCLab
IJCLab Orsay (Monday) & LPNHE Paris (Tuesday & Wednesday)236Montrer la salle sur la cartePrésident de session: Roberto Salerno (LLR)-
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Higgs production: A theory overview 45mOrateur: Aude Gehrmann-De Ridder (ETH Zurich)
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Plenary: General combinations (Mass, width, CP + couplings) 200/0-Auditorium - Auditorium P. LehmannPrésident de session: Roberto Salerno (LLR)
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Mass, width and CP measurements - ATLAS 15mOrateur: Carsten Burgard (Technische Universitaet Dortmund (DE))
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Mass, width and CP measurements - CMS 15mOrateur: Savvas Kyriacou (Johns Hopkins University (US))
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Coupling measurements - ATLAS 15mOrateur: Martina Laura Ojeda (Deutsches Elektronen-Synchrotron (DE))
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Coupling measurements - CMS 15mOrateur: Giacomo Ortona (Univ. di Torino e Sez. dell'INFN (IT))
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Higgs combinations: 3 transparencies of comparison 5m
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Discussion 40m
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Lunch 1h 30m Bures cafeteria (Orsay)
Bures cafeteria
Orsay
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Topical talks: Part 1 200/0-Auditorium - Auditorium P. Lehmann
200/0-Auditorium - Auditorium P. Lehmann
IJCLab
IJCLab Orsay (Monday) & LPNHE Paris (Tuesday & Wednesday)236Montrer la salle sur la cartePrésident de session: Arely Cortes Gonzalez (Humboldt University of Berlin (DE))-
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Higgs global fits 15mOrateur: Victor Miralles (INFN Roma1 (IT))
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First measurement of the Higgs boson production cross-section at √s = 13.6 TeV in the H→ZZ*→ 4l channel with the ATLAS detector 12mOrateur: Alice Reed (Max Planck Society (DE))
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The Two Scales of New Physics in Higgs Couplings 15mOrateur: Gabriele Rigo (IPhT Saclay (FR))
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Signal-background interference effects in Higgs physics 12mOrateur: Federica Devoto (University of Oxford (UK))
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Plenary: Higgs Self Coupling 200/0-Auditorium - Auditorium P. LehmannPrésident de session: Arely Cortes Gonzalez (Humboldt University of Berlin (DE))
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Higgs Self Coupling - CMS 15mOrateur: Jona Motta (Ecole Polytechnique)
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Higgs Self Coupling - ATLAS 15mOrateur: Lidija Zivkovic (Institute of physics Belgrade (RS))
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3 transparencies of comparison 5m
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Discussion 30m
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Coffee break 30m 200/0-Auditorium - Auditorium P. Lehmann
200/0-Auditorium - Auditorium P. Lehmann
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Plenary: Higgs and Cosmology 200/0-Auditorium - Auditorium P. Lehmann
200/0-Auditorium - Auditorium P. Lehmann
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IJCLab Orsay (Monday) & LPNHE Paris (Tuesday & Wednesday)236Montrer la salle sur la cartePrésident de session: Daniela Bortoletto (University of Oxford (UK))-
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Higgs and Cosmology 30mOrateur: Raffaele Tito D'Agnolo (IPhT, Saclay)
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Topical talks: Part 2 200/0-Auditorium - Auditorium P. Lehmann
200/0-Auditorium - Auditorium P. Lehmann
IJCLab
IJCLab Orsay (Monday) & LPNHE Paris (Tuesday & Wednesday)236Montrer la salle sur la cartePrésident de session: Daniela Bortoletto (University of Oxford (UK))-
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Search for Higgs boson pairs in the bbyy final state in ATLAS 12mOrateur: Tom Ingebretsen Carlson (Stockholm University (SE))
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Search for extra Higgs bosons through same-sign top-quark production in association with an extra jet in proton-proton collisions in CMS 12mOrateur: Ting-Hsiang Hsu (National Taiwan University (TW))
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Electroweak Phase Transitions and Gravitational Radiation in ‘CP in the Dark’ with BSMPT 12mOrateur: Lisa Biermann (Karlsruhe Institute of Technology (DE))
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Historical talk 200/0-Auditorium - Auditorium P. Lehmann
200/0-Auditorium - Auditorium P. Lehmann
IJCLab
IJCLab Orsay (Monday) & LPNHE Paris (Tuesday & Wednesday)236Montrer la salle sur la cartePrésident de session: Daniela Bortoletto (University of Oxford (UK))-
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The Long and Winding Road to the Discovery of the Higgs Boson 50m 200/0-Auditorium - Auditorium P. LehmannOrateur: Steve Myers (CERN)
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Welcome drink 1h 30m 200/0-Auditorium - Auditorium P. Lehmann
200/0-Auditorium - Auditorium P. Lehmann
IJCLab
IJCLab Orsay (Monday) & LPNHE Paris (Tuesday & Wednesday)236Montrer la salle sur la carte
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Coffee 35m Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
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Prelude by the organizers 5m Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
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Topical talks: Part 3 Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
Président de session: Sven Heinemeyer (IFT/IFCA (CSIC))-
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Search for Higgs boson decays to a pair of pseudoscalars in CMS 12mOrateur: Stephanie Kwan (Princeton University)
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Search for ALPs in Higgs boson decays in ATLAS 12mOrateur: Olivera Vujinovic (Johannes Gutenberg Universitaet Mainz (DE))
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Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √s=13 TeV in CMS 12mOrateur: Prasant Kumar Rout (National Central University (TW))
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Searching for Low-Mass Resonances Decaying into W Bosons 12mOrateur: Guglielmo Coloretti (University of Zurich (UZH))
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Plenary: BSM and rare H(125) decays Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
Président de session: Sven Heinemeyer (IFT/IFCA (CSIC))-
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Additional scalar bosons - ATLAS 15mOrateur: Lerothodi Leeuw (Univ. of Johannesburg (ZA))
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Additional scalar bosons - CMS 15mOrateur: Chayanit Asawatangtrakuldee (Chulalongkorn University (TH))
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BSM and rare H(125) decays - ATLAS 15mOrateur: Michael Kwok Lam Chu (Weizmann Institute of Science (IL))
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BSM and rare H(125) decays - CMS 15mOrateur: Jingyu Zhang (Florida State Univ. (US))
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3 transparencies of comparison 5m
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Discussion 40m
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Lunch buffet 1h 25m LPNHE Paris
LPNHE Paris
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Plenary: CMS joker talk Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
Président de session: Elisabetta Gallo (DESY & Univ. Hamburg)-
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ttH and tH measurements at CMS 25mOrateur: Philip Keicher (Univ. Hamburg (DE))
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Plenary: Vector Boson Scattering Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
Président de session: Elisabetta Gallo (DESY & Univ. Hamburg)-
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VBS measurements - CMS 15mOrateur: Mattia Lizzo (Univ. di Firenze e Sez. dell'INFN (IT))
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VBS measurements - ATLAS 15mOrateur: Todd Zenger (Brandeis University (US))
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3 transparencies of comparison 5m
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Discussion 30m
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Plenary: Higgs Vacuum Metastability Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
Président de session: Elisabetta Gallo (DESY & Univ. Hamburg)-
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Higgs Vacuum Metastability 30mOrateur: Arttu Rajantie (Imperial College)
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Coffee break 30m LPNHE Paris
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Plenary: Effective Field Theories Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
Président de session: Paolo Francavilla (INFN Pisa)-
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EFT - ATLAS 15mOrateur: Jay Sandesara (University of Massachusetts Amherst)
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Higgs boson anomalous couplings and EFT at CMS 15mOrateur: Angela Taliercio (Northwestern Univ. (US))
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3 transparencies of comparison 5m
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Discussion 25m
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Plenary: New analysis methods Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
Président de session: Paolo Francavilla (INFN Pisa)-
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New analysis methods - ATLAS 15mOrateur: Yanping Huang (Chinese Academy of Sciences (CN))
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New analysis methods - CMS 15mOrateur: Alessandro Calandri (ETH Zürich (CH))
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3 transparencies of comparison 5m
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Discussion 15m
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Plenary: Vision talk Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
Président de session: Paolo Francavilla (INFN Pisa)-
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How Standard-Model-Like is the Higgs? 40mOrateur: Matthew McCullough (CERN)
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Dinner 2h Tour Zamansky (Sorbonne Université)
Tour Zamansky
Sorbonne Université
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Coffee 35m LPNHE Paris
LPNHE Paris
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Prelude by the organisers 5m Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
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Plenary: ATLAS joker talk Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
Président de session: Ursula Bassler (IN2P3)-
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Measurement of high-momentum Higgs boson production in association with a vector boson in the qqbb final state with the ATLAS detector 25mOrateur: Andrea Sciandra (UCSC)
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Topical talks: Part 4 200/0-Auditorium - Auditorium P. Lehmann
200/0-Auditorium - Auditorium P. Lehmann
IJCLab
IJCLab Orsay (Monday) & LPNHE Paris (Tuesday & Wednesday)236Montrer la salle sur la cartePrésident de session: Ursula Bassler (IN2P3)-
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Higgs and (Light) Quark Studies at the ILC 12mOrateur: Yuichi Okugawa (Tohoku University (JP))
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Plenary: Higgs physics at future colliders Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
Président de session: Ursula Bassler (IN2P3)- 10:45
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Experimental prospects at FCC 30mOrateur: Patrizia Azzi (INFN Padova)
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Muon collider challenges and status 30mOrateur: Daniel Schulte (CERN)
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Discussion 45m
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LPNHE buffet 1h 30m 200/0-Auditorium - Auditorium P. Lehmann
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Plenary: Higgs constraints from low-energy measurements Amphithéatre Charpak (LPNHE Paris)
Amphithéatre Charpak
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Président de session: Marco Pieri (Univ. of California San Diego (US))-
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Higgs constraints from low-energy measurements 30mOrateur: Stéphanie Roccia (LPSC Grenoble)
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Topical talks: Part 5 Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
Président de session: Marco Pieri (Univ. of California San Diego (US))-
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Effective-field theory interpretations of Higgs boson production and decay rates with the ATLAS experiment 12mOrateur: Oleksii Lukianchuk (Université Paris-Saclay (FR))
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Plenary: Concluding talks Amphithéâtre Charpak (LPNHE Paris)
Amphithéâtre Charpak
LPNHE Paris
Président de session: Marco Pieri (Univ. of California San Diego (US))-
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Theory concluding talk 45mOrateur: Massimiliano Grazzini (University of Zurich)
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Experimental concluding talk 45mOrateur: Andrea Rizzi (Universita & INFN Pisa (IT))
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Farewell coffee 1h LPNHE Paris
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Meenakshi Narain, a leader in our field, passed away on January 1, 2023 at the age of 58. The Higgs Hunting workshop expresses its deepest condolences to her friends and family.