Higgs Hunting 2026

Europe/Paris
IJCLab Orsay / APC Paris

IJCLab Orsay / APC Paris

IJCLab Orsay (Tuesday) & APC Paris (Wednesday & Thursday)
Description

HH2026 (poster PDF)

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.

More than 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 16th workshop of the « Higgs Hunting » series organized on September 16-18, 2026 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 new results from 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.

François Englert passed away on June 18th 2026. In 1964 , together with Robert Brout, he proposed that spontaneous symmetry breaking could provide masses for the mediators of the weak interactions, the W and Z bosons. At the same time, British physicist Peter Higgs had independently hypothesised the existence of the same mechanism.  

The existence of the Brout-Englert-Higgs field was proved in 2012 with the discovery of its associated particle by the  ATLAS and CMS experiments at the LHC. The following year, the Nobel Prize in Physics was awarded jointly to François Englert  and Peter Higgs since Robert Brout had already passed away at this time.

HH2025 tutelles Labos

Tektronix

Registration deadline: July 30, 2026

Valérie Brouillard et Emilie Bonnardel
Inscription
Registration
    • 09:00
      Registration (with coffee and croissants) 200/0-Cafétéria - Cafeteria 200 (IJCLab)

      200/0-Cafétéria - Cafeteria 200

      IJCLab

      150
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    • 1
      Prelude from the organizers
    • Plenary: Theory overview 200/0-Auditorium - Auditorium P. Lehmann (IJCLab)

      200/0-Auditorium - Auditorium P. Lehmann

      IJCLab

      236
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      • 2
        Advances in Higgs Boson Theory
        Orateur: Matthias Steinhauser (Karlsruhe Institute of Technology)
    • Topical talks: Part 1 200/0-Auditorium - Auditorium P. Lehmann (IJCLab)

      200/0-Auditorium - Auditorium P. Lehmann

      IJCLab

      236
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      • 3
        Hidden new physics in PDF fits
        Orateur: Ella Cole (Cambridge)
    • Plenary: H(125) properties 200/0-Auditorium - Auditorium P. Lehmann (IJCLab)

      200/0-Auditorium - Auditorium P. Lehmann

      IJCLab

      236
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      • 4
        H(125) property measurements - ATLAS
      • 5
        H(125) property measurements - CMS
      • 6
        H(125) property measurements - Overview
      • 7
        H(125) property measurements - Discussion of current status and prospects
    • 12:55
      Lunch Bures Cafeteria (IJCLab)

      Bures Cafeteria

      IJCLab

    • 14:00
      Coffee 200/0-Cafétéria - Cafeteria 200 (IJCLab)

      200/0-Cafétéria - Cafeteria 200

      IJCLab

      150
      Montrer la salle sur la carte
    • Topical talks: Part 2 200/0-Auditorium - Auditorium P. Lehmann (IJCLab)

      200/0-Auditorium - Auditorium P. Lehmann

      IJCLab

      236
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    • Plenary: H(125) self-coupling and pair production 200/0-Auditorium - Auditorium P. Lehmann (IJCLab)

      200/0-Auditorium - Auditorium P. Lehmann

      IJCLab

      236
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      • 8
        H(125) self-coupling and pair production - CMS
      • 9
        H(125) self-coupling and pair production - ATLAS
      • 10
        H(125) self-coupling and pair production - Overview
      • 11
        H(125) self-coupling and pair production - Discussion
    • Topical talks: Part 3 200/0-Auditorium - Auditorium P. Lehmann (IJCLab)

      200/0-Auditorium - Auditorium P. Lehmann

      IJCLab

      236
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    • Plenary: Anaysis methods 200/0-Auditorium - Auditorium P. Lehmann (IJCLab)

      200/0-Auditorium - Auditorium P. Lehmann

      IJCLab

      236
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      • 12
        Analysis methods - CMS
      • 13
        Analysis methods - ATLAS
      • 14
        Analysis methods - Overview
      • 15
        Analysis methods - Discussion
    • 17:15
      Coffee break
    • Plenary: ATLAS Joker talk 200/0-Auditorium - Auditorium P. Lehmann (IJCLab)

      200/0-Auditorium - Auditorium P. Lehmann

      IJCLab

      236
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      Président de session: Suzanne GASCON (Ip2I Lyon)
    • Plenary: Historical talk 200/0-Auditorium - Auditorium P. Lehmann (IJCLab)

      200/0-Auditorium - Auditorium P. Lehmann

      IJCLab

      236
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      Président de session: Suzanne GASCON (Ip2I Lyon)
      • 16
        TBA
        Orateur: David Gross (Kavli Institute for Theoretical Physics, UC Santa Barbara)
    • 19:00
      Welcome cocktail 200/0-Auditorium - Auditorium P. Lehmann (IJCLab)

      200/0-Auditorium - Auditorium P. Lehmann

      IJCLab

      236
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    • 09:30
      Welcome coffee APC Paris

      APC Paris

    • Plenary: CMS Joker talk Amphithéâtre Buffon (APC Paris)

      Amphithéâtre Buffon

      APC Paris

      Président de session: Sven Heinemeyer (IFT/IFCA (CSIC))
      • 17
        CMS Joker talk (TBA)
    • Plenary: H(125) BSM aspects and searches for new scalar bosons Amphithéâtre Buffon (APC Paris)

      Amphithéâtre Buffon

      APC Paris

      Président de session: Sven Heinemeyer (IFT/IFCA (CSIC))
      • 20
        Status of deviations from the SM in the Higgs sector
        Orateur: Livia Soffi (INFN Rome)
    • Topical talks: Part 4 Amphithéâtre Buffon (APC Paris)

      Amphithéâtre Buffon

      APC Paris

      • 23
        Accidentally light scalars: naturalness and cosmology
        Orateur: Giacomo Ferrante (Université Libre de Bruxelles)
      • 24
        Phenomenology of the light CP odd Higgs
        Orateur: Claire Chevallier (IJCLab)
    • 13:00
      Lunch buffet APC Paris

      APC Paris

    • Plenary: Effective field theories Amphithéâtre Buffon (APC Paris)

      Amphithéâtre Buffon

      APC Paris

      • 25
        Effective field theories - Theory overview
        Orateur: Eleni Vryonidou (University of Cyprus)
      • 26
        Effective field theories - CMS
      • 27
        Effective field theories - ATLAS
      • 28
        Effective field theories - Overview
      • 29
        Effective field theories - Discussion
    • Topical talks: Part 5 Amphithéâtre Buffon (APC Paris)

      Amphithéâtre Buffon

      APC Paris

      • 30
        Two-loop RGE effects in EFT fits
        Orateur: Alejo Rossia (Padova)
      • 31
        SMEFT fits
        Orateur: Marion Thomas (MPI Munich)
    • Plenary: Vision talk Amphithéâtre Buffon (APC Paris)

      Amphithéâtre Buffon

      APC Paris

      • 32
        After the Higgs: Looking for the Universe Behind the Particle
        Orateur: Veronica Sanz (Universitat de Valencia)
    • 33
      Dinner information APC Paris

      APC Paris

    • 17:01
      Travel to Excursion and dinner at Musée d'Orsay TBA

      TBA

    • 18:00
      Visit of Musée d'Orsay and dinner
    • 09:30
      Welcome coffee APC Paris

      APC Paris

    • Topical talks: Part 6 Amphithéâtre Buffon (APC Paris)

      Amphithéâtre Buffon

      APC Paris

      Président de session: Daniela Bortoletto (University of Oxford)
      • 34
        Gauge anomalies on shell and collinear factorization
        Orateur: Edoardo Alviani (IJCLab)
      • 35
        ZH cross section, Higgs Mass and Branching Ratio measurements in ZH events at FCC-ee, at 240 and 365 GeV
        Orateur: Tom Fournier (APC Paris)
    • Plenary: Prospects for Higgs boson physics at future circular colliders Amphithéâtre Buffon (APC Paris)

      Amphithéâtre Buffon

      APC Paris

      Président de session: Daniela Bortoletto (University of Oxford)
      • 36
        Theory roadmap towards FCC
        Orateur: Laura Reina (Florida State University (US))
      • 37
        Experimental roadmap towards FCC
        Orateur: Guy Wilkinson (University of Oxford)
      • 38
        Status of CEPC
        Orateur: Yifang Wang (IHEP)
      • 39
        Discussion
    • 12:45
      Lunch buffet
    • Plenary: Higgs boson and cosmology Amphithéâtre Buffon (APC Paris)

      Amphithéâtre Buffon

      APC Paris

      Président de session: Barbara Clerbaux (Université Libre de Bruxelles)
      • 40
        The Higgs boson and cosmology
        Orateur: Shinya Kanemura (Osaka University)
    • Plenary: Concluding talks Amphithéâtre Buffon (APC Paris)

      Amphithéâtre Buffon

      APC Paris

      Président de session: Barbara Clerbaux (Université Libre de Bruxelles)
      • 41
        Theory concluding talk
        Orateur: Pier Monni (CERN)
      • 42
        Experimental concluding talk
        Orateur: Marco DELMASTRO (CNRS/IN2P3 LAPP)
    • 16:00
      Farewell coffee APC Paris

      APC Paris