Etude du couplage top-Higgs / Study of the top-Higgs coupling

Personnes impliquées / People involved

Action scientifique passée / Former scientific action

D. Boumediene (responsable / leader)

N. Agaras

A. Chomont

S. Angelidakis

D. Paredes Hernandez

Study of the top-Higgs coupling

The goal is to study the coupling between the top quark and the Standard Model Higgs boson, that was discovered by ATLAS and CMS in 2012, the first step being to observe the tt̄h final state. In Atlas@Clermont, we focus on the multilepton final state.

At the end of 2017, a first evidence for the observation of this channel has been published. The first observation was announced in June 2018.

Etude du couplage top-Higgs

L'objectif est d'étudier le couplage entre le quark top et le boson de Higgs du Modèle Standard qui a été découvert en 2012 par ATLAS et CMS. La première étape est d'observer l'état final tt̄h. Dans l'équipe Atlas@Clermont, nous travaillons sur l'état final multileptonique.
Fin 2017, un premier signe de l'observation de ce canal a été publiée et en juin 2018 la confirmation de son observation a été annoncée.

Documents →all

N. Agaras: Ph.D. thesis: Searches for associated Higgs Boson production with top quark pair and Higgs pair production in multi lepton final states with the ATLAS detector, directed by D. Boumediene
ATLAS-CONF-2019-045: Analysis of tt̄H and tt̄W production in multilepton final states with the ATLAS detector
PLB 784 (2018) 173 (arXiv:1806.00425): Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector
PRD 97 (2018) 072003 (arXiv:1712.08891): Evidence for the associated production of the Higgs boson and a top quark pair with the ATLAS detector
ATLAS-CONF-2017-077: Evidence for the associated production of the Higgs boson and a top quark pair with the ATLAS detector
A. Chomont: Ph.D. thesis: Etude du couplage du boson de Higgs au quark top dans l'expérience ATLAS, directed by D. Boumediene
ATLAS-CONF-2016-068: Combination of the searches for Higgs boson production in association with top quarks in the γγ, multilepton, and bb̄ decay channels at √s=13 TeV with the ATLAS Detector
ATLAS-CONF-2016-058: Search for the Associated Production of a Higgs Boson and a Top Quark Pair in Multilepton Final States with the ATLAS Detector
JHEP 05 (2016) 160 (arXiv:1604.03812): Search for the Standard Model Higgs boson decaying into bb̄ produced in association with top quarks decaying hadronically in pp collisions at √s=8 TeV with the ATLAS detector
EPJC (2016) 76:6 (arXiv:1507.04548): Measurements of the Higgs boson production and decay rates and coupling strengths using pp collision data at √s=7 and 8 TeV in the ATLAS experiment
PLB 749 (2015) 519-541 (arXiv:1506.05988): Search for the associated production of the Higgs boson with a top quark pair in multilepton final states with the ATLAS detector
ATLAS-CONF-2015-006: Search for the associated production of the Higgs boson with a top quark pair in multi-lepton final states with the ATLAS detector

Last update on 2024-01-11


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