Journées de Rencontre Jeunes Chercheur·se·s 2026

Session

Standard Model

23 nov. 2026, 09:25

Présidents de session

Standard Model

• Bruna Osorio Pascual (Laboratoire de Physique Clermont-Auvergne (LPCA))

Standard Model

• Bruna Osorio Pascual (Laboratoire de Physique Clermont-Auvergne (LPCA))

Standard Model

• Bruna Osorio Pascual (Laboratoire de Physique Clermont-Auvergne (LPCA))

71. Session overview

Bruna Osorio Pascual (Laboratoire de Physique Clermont-Auvergne (LPCA))

23/11/2026 09:25

159. Photon identification and single-Higgs background modelling for $HH\rightarrow b\bar{b}\gamma\gamma$ searches in the ATLAS experiment

Mlle Hind Taibi

23/11/2026 09:55

Standard Model

The discovery of the Higgs boson at the LHC was followed by a broad research programme aimed at measuring its properties and comparing them with theoretical predictions. Among these, the Higgs boson self-coupling is of particular interest. The ATLAS experiment aims to measure it by searching for Higgs boson pair ($HH$) production in the Run 2 and Run 3 LHC datasets, and one of the most...

140. Model-independent ZH cross-section measurement for 240 GeV and 365 GeV at FCC in electron-positron collisions

M. Tom FOURNIER (APC Paris CNRS/IN2P3)

23/11/2026 10:50

Standard Model

The Future Circular Collider (FCC) is the proposed next-generation collider at CERN to succeed HL-LHC. Its first stage, FCC-ee, would operate as a high-luminosity $e^+e^-$ collider a several centre-of-mass energies ($\sqrt{s}$), providing exceptionally clean conditions for precision studies of the Higgs boson, electroweak interactions, QCD, flavor Physics and to test the Standard Model.

The...

101. Talk SM #5

Nicolas Cartalade

23/11/2026 11:15

142. Boosted jet taggers calibration Scale Factors and particpation in ITk Pixel Module Production

Omar ISTAITIA (IJCLab)

23/11/2026 11:40

Standard Model

Boosted-object taggers use the internal substructure of large-R jets to identify whether a jet comes from a hadronically decaying W, Z ,H bosons or top quark.Tggers (ANN/DisCoJet, DNN) were already used in Run-2 physics analyses, and new-generation taggers based on Transformer like ParT tagger have been developed since Run-2 . With the new ATLAS software release for Run 3, the existing...

143. Top-quark mass using J/psi and fake leptons estimate

William Roth (LPNHE)

23/11/2026 12:05

Standard Model

The top-quark mass is one of the key fundamental parameters of the Standard Model of particle physics that must be determined experimentally. Its value has an important effect on many precision measurements and tests of the Standard Model. The ATLAS experiment collects proton-proton collisions at CERN’s Large Hadron Collider (LHC). In this contribution, I will concentrate on a specific...

138. Search for di-Higgs pair production decaying in b-quark pair and tau-leptons in the fully hadronic channel

Mlle Eléa Paquis (LPSC-Grenoble CNRS/IN2P3)

23/11/2026 15:00

Standard Model

A search for non-resonant Higgs boson pair production ($HH$) in the $b\bar{b}\tau^{+}\tau^{-}$ final state is presented using the full Run 2 ($140 \text{ fb}^{-1}$ at $\sqrt{s}=13\text{ TeV}$) and partial Run 3 ($56 \text{ fb}^{-1}$ at $\sqrt{s}=13.6\text{ TeV}$) proton-proton collision recorded by the ATLAS detector at the CERN Large Hadron Collider between 2015 and 2023. The signal searched...

96. Latest HL-LHC b-tagging developments and expected impact on di-Higgs sensitivity

Vincenzo Triglione (CPPM, Aix-Marseille Université, CNRS/IN2P3 (FR))

23/11/2026 15:25

Standard Model

The High-Luminosity Large Hadron Collider (HL-LHC) will open new opportunities for the study of rare processes, including Higgs boson pair (di-Higgs) production. Flavour tagging will play a central role in enabling these measurements. This talk presents the expected challenges for flavour tagging in the HL-LHC environment, characterized by unprecedented instantaneous luminosity, high pile-up...

165. Talk SM #10

Giorgio Mauceri

23/11/2026 15:50