Search for the associated production of a Higgs boson and a top quark pair in multilepton (2 leptons, no hadronically-decaying τ lepton candidates and 4 leptons) final states with the ATLAS detector.

Abstract : The Yukawa coupling of the Higgs boson to the top quark is a key parameter of the Standard Model. It can be constrained using the associated production process pp → ttH + X. A search for this process using final states with multiple leptons, primarily targeting the decays H→ WW∗ and H → ττ, has been performed using the data set recorded by the ATLAS detector in 2015 and 2016 at a center of mass energy √s= 13 TeV. The analysis presented here includes two of the four final states distinguished by the number and flavor of leptons: two same-charge light leptons ( e or µ ) and no hadronically-decaying τ lepton candidates (2l0τhad) and four light leptons (4l), the remaining channels not covered being two same-charge light leptons and one hadronically-decaying τ lepton candidate (2l1τhad) and three light leptons (3l). The different background sources are also presented for each channel considered. The latest best-fit value for the ratio of observed versus
Type de document :
Poster
EPS Conference on High Energy Physics (HEP2017), Jul 2017, Venise, Italy. 〈http://eps-hep2017.eu/〉
Liste complète des métadonnées

http://hal.in2p3.fr/in2p3-01581487
Contributeur : Danielle Cristofol <>
Soumis le : lundi 4 septembre 2017 - 17:38:22
Dernière modification le : jeudi 18 janvier 2018 - 01:55:59

Identifiants

  • HAL Id : in2p3-01581487, version 1

Collections

Citation

Y. Rozen, A.E. Dumitriu. Search for the associated production of a Higgs boson and a top quark pair in multilepton (2 leptons, no hadronically-decaying τ lepton candidates and 4 leptons) final states with the ATLAS detector. . EPS Conference on High Energy Physics (HEP2017), Jul 2017, Venise, Italy. 〈http://eps-hep2017.eu/〉. 〈in2p3-01581487〉

Partager

Métriques

Consultations de la notice

37