LHC Higgs WG4 Meeting: Discussion on scope, status and timeline of the second wave of LHCHWG Report 5 contributions

Thursday 11 Jun 2026, 14:00 → 16:00 Europe/Zurich

Andreas Papaefstathiou (Kennesaw State University (US)), Angela Taliercio (Northwestern University (US)), Arantxa Ruiz Martinez (Univ. of Valencia and CSIC (ES)), Ludovic Michel Scyboz (Monash University)

14:00 → 14:10 Introduction and status update on the first wave of the LHCHWG Report 5 contributions

Speakers: Andreas Papaefstathiou, Angela Taliercio (Northwestern University (US)), Arantxa Ruiz Martinez (Univ. of Valencia and CSIC (ES)), Ludovic Scyboz

LHCHWG4_11Jun2026.pdf

14:10 → 14:35 Reweighting formulas and matrix method optimization for gluon fusion HH production in HEFT/SMEFT

Speakers: Alexandra Carvalho Antunes De Oliveira (Peking University (CN)), Matheus Pereira Coelho (Centro de Ciências Naturais e Humanas, Universidade Federal do ABC - UFABC), Torben Lange (National Institute of Chemical Physics and Biophysics (EE))

HH_modelingWG4_2026.pdf

14:35 → 14:50 Matrix method optimization for other Multi-H production processes in HEFT

Speaker: Spyros Merianos (Université catholique de Louvain)

Multi_higgs_bases_optimisation_LHCWG_June_11_2026_v3.pdf

14:50 → 15:10 Higgs boson pair production in HEFT and SMEFT: NLO QCD cross sections as functions of Wilson coefficients plus shape and truncation studies

Speaker: Bakar Chargeishvili (Institute for Theoretical Physics, KIT)

slides_gghhSMEFT_shapes.pdf

15:10 → 15:20 Investigating b-quark effects in Higgs boson pair production

Speaker: Philipp Rendler (Institute for Theoretical Physics, KIT)

Investigating_b_quark_effects_in_Higgs_boson_pair_production.pdf

15:20 → 15:35 BSM benchmarks for HH production in various extended Higgs sector models

Speaker: Rafael Filipe Teixeira Boto

HH_benchmarks_boto.pdf

15:35 → 15:50 Interference effects between resonant and non-resonant contributions in BSM models

Speaker: Kateryna Radchenko Serdula (IFT)

LHCHWG4_Radchenko.pdf

15:50 → 16:00 AOB