Higgs Hunting 2026

Sep 16, 2026, 9:00 AM → Sep 18, 2026, 7:00 PM Europe/Paris

IJCLab Orsay / APC Paris

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.

Registration deadline: July 30, 2026

affiche_HH2026_chardin_V7_HD_0526.pdf

RER_to_Auditorium.pdf

Wed, September 16

9:00 AM Registration (with coffee and croissants)

1 Prelude from the organizers

Plenary: Theory overview

2 Advances in Higgs Boson Theory

Speaker: Matthias Steinhauser (Karlsruhe Institute of Technology)

Topical talks: Part 1

3 Hidden new physics in PDF fits

Speaker: Ella Cole (Cambridge)

Plenary: H(125) properties

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 PM Lunch

2:00 PM Coffee

Topical talks: Part 2

Plenary: TBA

Plenary: H(125) self-coupling and pair production

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 - Dicussion

4:45 PM Coffee break

Topical talks: Part 3

Plenary: ATLAS Joker talk

Plenary: Historical talk

12 TBA

Speaker: David Gross (Kavli Institute for Theoretical Physics, UC Santa Barbara)

7:00 PM Welcome cocktail

Thu, September 17

9:30 AM Welcome coffee

Plenary: CMS Joker talk

Convener: Sven Heinemeyer (IFT/IFCA (CSIC))

13 CMS Joker talk (TBA)

Topical talks: Part 4

Convener: Sven Heinemeyer (IFT/IFCA (CSIC))

Plenary: H(125) BSM aspects and searches for new scalar bosons

Convener: Sven Heinemeyer (IFT/IFCA (CSIC))

14 H(125) BSM aspects and searches for new scalar bosons - ATLAS

15 H(125) BSM aspects and searches for new scalar bosons - CMS

16 H(125) BSM aspects and searches for new scalar bosons - Overview

17 H(125) BSM aspects and searches for new scalar bosons - Discussion

Plenary: Analysis methods

Convener: Sven Heinemeyer (IFT/IFCA (CSIC))

18 Analysis methods - CMS

19 Analysis methods - ATLAS

20 Analysis methods - Overview

21 Analysis methods - Discussion

Topical talks: Part 5

22 Accidentally light scalars: naturalness and cosmology

Speaker: Giacomo Ferrante (Université Libre de Bruxelles)

23 Phenomenology of the light CP odd Higgs

Speaker: Claire Chevallier (IJCLab)

1:10 PM Lunch buffet

Topical talks: Part 6

24 Two-loop RGE effects in EFT fits

Speaker: Alejo Rossia (Padova)

25 SMEFT fits

Speaker: Marion Thomas (MPI Munich)

Plenary: Effective field theories

26 Effective field theories - Theory overview

Speaker: Eleni Vryonidou (University of Cyprus)

27 Effective field theories - CMS

28 Effective field theories - ATLAS

29 Effective field theories - Overview

30 Effective field theories - Discussion

Plenary: Vision talk

31 After the Higgs: Looking for the Universe Behind the Particle

Speaker: Veronica Sanz (Universitat de Valencia)

32 Dinner information

5:01 PM Travel to Excursion and dinner at Musée d'Orsay

6:00 PM Visit of Musée d'Orsay and dinner

Fri, September 18

9:30 AM Welcome coffee

Topical talks: Part 7

Convener: Daniela Bortoletto (University of Oxford)

33 Gauge anomalies on shell and collinear factorization

Speaker: Edoardo Alviani (IJCLab)

34 FCC (TBA)

Speaker: Tom Fournier (APC Paris)

Plenary: Prospects for Higgs boson physics at future circular colliders

Convener: Daniela Bortoletto (University of Oxford)

35 Theory roadmap towards FCC

Speaker: Laura Reina (Florida State University (US))

36 Experimental roadmap towards FCC

Speaker: Guy Wilkinson (University of Oxford)

37 Status of CEPC

Speaker: Yifang Wang (IHEP)

38 Discussion

12:45 PM Lunch buffet

Plenary: Higgs boson and cosmology

Convener: Barbara Clerbaux (Université Libre de Bruxelles)

39 The Higgs boson and cosmology

Speaker: Shinya Kanemura (Osaka University)

Plenary: Concluding talks

Convener: Barbara Clerbaux (Université Libre de Bruxelles)

40 Theory concluding talk

Speaker: Pier Monni (CERN)

41 Experimental concluding talk

Speaker: Marco DELMASTRO (CNRS/IN2P3 LAPP)

4:00 PM Farewell coffee