IRN Terascale @ Heidelberg

Session

Higgs and Electroweak

21 oct. 2026, 09:30

International Academic Forum - Heidelberg University

2. Towards precise predictions of trilinear scalar couplings and di-Higgs production in extended scalar sectors

Dr Johannes Braathen (DESY)

21/10/2026 09:30

Higgs

Reconstructing the shape of the Higgs potential realised in Nature is crucial to understand the dynamics of the electroweak phase transition and probe physics beyond the Standard Model (BSM). For this purpose, precise theoretical predictions are needed for trilinear scalar couplings, which control the form of the potential, and for Higgs pair production cross-sections, which are the physical...

1. Impact of online b-Jet tagging on the ATLAS hh to bbtautau analysis

Christian Mavungu Tsava (CNRS)

21/10/2026 10:00

Higgs

A search for non-resonant hh production in the bbtt final state combines the full Run 2 dataset, corresponding to 140 fb^{-1} at √s = 13 TeV, with 56 fb^{-1} of early Run 3 data collected in 2022–2023 at √s = 13.6 TeV. Compared to the previous analysis in the same final state, the current analysis benefits from the additional integrated luminosity provided by the early Run 3 dataset, improved...

3. Top-Yukawa- and Light-Quark-Induced Electroweak Corrections to gg → HH

Sauro Carlotti (Karlsruhe Institute of Technology - ITP)

21/10/2026 11:05

Higgs

After the discovery of the Higgs boson in 2012, the measurement of the Higgs self-coupling is still a challenge for current and future experiments in particle physics.
Higgs-boson pair production via gluon fusion is a loop-induced process. In order to increase the accuracy of the theoretical predictions for this process, higher-order corrections are necessary to reduce theoretical...

23. Longitudinal polarisation of electroweak gauge bosons in WZjj-EW production with ATLAS

Mathis Dubau (LAPP)

21/10/2026 11:40

Higgs

The scattering of longitudinally polarised electroweak gauge bosons provides a direct probe of the mechanism of electroweak symmetry breaking and of the structure of the Standard Model at high energies. This talk presents the first measurement of longitudinal polarisation states in electroweak $\mathrm{W}^{\pm}\mathrm{Z}$ production in association with two jets ($\mathrm{WZjj}$-EW), using 140...