Name: HHH workshop
Start: 2025-09-29T08:00:00+02:00
End: 2025-10-01T18:00:00+02:00
Location: Dubrovnik

HHH workshop

from Monday, 29 September 2025 (08:00) to Wednesday, 1 October 2025 (18:00)

Monday, 29 September 2025

08:15 Welcome session - badges: Registration
Registration
08:15 - 09:00
09:00 Opening session: experiment and theory overview
09:00 - 10:45
Contributions

09:00 Welcome talk + logistics - Vuko Brigljevic (Rudjer Boskovic Institute (HR))

09:15 Theory overview - Tania Robens (Rudjer Boskovic Institute (HR))

10:00 Experimental overview: HHH and HH results since the 2023 HHH workshop - Tristan Arnoldus Du Pree (Nikhef National institute for subatomic physics (NL))
10:45 Coffee break

10:45 - 11:15
11:15 Experiment session
11:15 - 12:45
Contributions

11:15 CMS road to HH - Jacobo Konigsberg (University of Florida (US))

11:45 Recent ATLAS HH results - Brian Moser (University of Freiburg (DE))

12:15 CMS: small and large-radius jets tagging in searches for rare processes - Loukas Gouskos (Brown University (US))
12:45 Lunch

12:45 - 14:00
14:00 Experiment session
14:00 - 16:00
Contributions

14:00 ATLAS HHH6b - Osama Karkout (Nikhef National institute for subatomic physics (NL))

14:30 Recent CMS HHH results - Marko Stamenkovic (Brown University (US)) Xinyue Geng (Peking University (CN))

15:00 Ideas for HHH4b2tau - Gabriel Oliveira Correa (The Barcelona Institute of Science and Technology (BIST) (ES))

15:30 CMS tau-identification in the context of HHH4b2tau - Dennis Roy (Kansas State University (US))
16:00 Coffee break

16:00 - 16:30
16:30 Theory session
16:30 - 18:30
Contributions

16:30 An analytic result for the 0 → g g H H H 0→ggHHH amplitude - Giuseppe De Laurentis (University of Edinburgh)

17:00 Reinterpreting the ATLAS HHH search in CheckMATE and Rivet - Krzysztof Rolbiecki (Warsaw University)

17:30 Multi-Higgs production as probes of HEFT interactions - Anisha . (Karlsruhe Institute of Technology)

18:00 Electroweak Symmetry Restoration at High Energies - Tao Han
18:30 Welcome reception

18:30 - 20:00
Tuesday, 30 September 2025
09:00 Experiment session
09:00 - 10:30
Contributions

09:00 ATLAS Xbb tagging - Jurjan Bootsma (Nikhef National institute for subatomic physics (NL))

09:30 ATLAS b-jet trigger - Roshan Joshi (Ohio State University (US))

10:00 CMS: recent developments in heavy flavor tagging - Clara Ramon Alvarez (University of Virginia (US))
10:30 Experiment session: LHC Higgs WG - HHH - YR5 discussions
LHC Higgs WG - HHH - YR5 discussions
10:30 - 11:00
Contributions

10:30 Open discussion for HHH YR5 contributions - Benjamin Fuks Greg Landsberg (Brown University (US)) William Balunas (University of Cambridge (GB))
11:00 Coffee break

11:00 - 11:30
11:30 Theory session
11:30 - 12:00
Contributions

11:30 A new probe of the quartic Higgs self-coupling - Giulia Zanderighi (Max Planck Society (DE))
12:00 Boat excursion: Boat excursion
Boat excursion
12:00 - 18:00

Lunch: Lunch at UIC for people not interested in excursion
Lunch at UIC for people not interested in excursion
12:00 - 13:30

20:00 Conference dinner

20:00 - 22:00
Wednesday, 1 October 2025
09:00 Theory session
09:00 - 11:00
Contributions

09:00 Connecting Multi-Higgs production and the Electroweak Phase Transition - Osama Karkout (Nikhef National institute for subatomic physics (NL))

09:30 Triple Higgs production in a 100 TeV collider - Gilberto Tetlalmatzi-Xolocotzi (Siegen University)

10:00 TRSM Light Scalars in the Spotlight of the LHC - Mohamed Ouchemhou

10:30 Deciphering the CP nature of the 95 GeV Higgs boson - Prasenjit Sanyal (Asia Pacific Center for Theoretical Physics) Prasenjit Sanyal (Asia Pacific Center for Theoretical Physics)
11:00 Coffee break

11:00 - 11:30
11:30 Theory session
11:30 - 12:00
Contributions

11:30 Detecting P-even CP violation at future colliders in the production of multiple Higgs bosons of extended Higgs sectors - Howard Haber (University of California,Santa Cruz (US))
12:00 Closing session: overview and vision for the future
12:00 - 13:00
Contributions

12:00 HHH 2025 workshop: closing session and vision for the future - Todd Brian Huffman (University of Oxford (GB))
13:00 Lunch

13:00 - 14:00

14:30 Dubrovnik guided tour (if interested)

14:30 - 16:00

Trip to Lokrum Island (if interested)

14:30 - 18:00