par Khachatryan, Vardan;Barria, Patrizia ;Brun, Hugues ;Caillol, Cécile ;Clerbaux, Barbara ;De Lentdecker, Gilles ;Fasanella, Giuseppe ;Favart, Laurent ;Grebenyuk, Anastasia ;Karapostoli, Georgia ;Lenzi, Thomas ;Leonard, Alexandre ;Maerschalk, Thierry ;Marinov, Audrey ;Pernie, Luca ;Randle-Conde, Aidan Sean ;Reis, Thomas ;Seva, Tomislav ;Vander Velde, Catherine ;Vanlaer, Pascal ;Yonamine, Ryo ;Zenoni, Florian ;Zhang, Fengwangdong ; [et al.]
Référence The Journal of high energy physics, 2015, 11, 18
Publication Publié, 2015
Référence The Journal of high energy physics, 2015, 11, 18
Publication Publié, 2015
Article révisé par les pairs
Résumé : | A search for a charged Higgs boson is performed with a data sample corresponding to an integrated luminosity of 19.7 ± 0.5 fb−1 collected with the CMS detector in proton-proton collisions at √s= 8,TeV. The charged Higgs boson is searched for in top quark decays for mH± < mt − mb, and in the direct production pp → t(b)H± for mH± > mt − mb. The H± → τ±ντ and H± → tb decay modes in the final states τh+jets, μτh, ℓ+jets, and ℓℓ’ (ℓ =e, μ) are considered in the search. No signal is observed and 95% confidence level upper limits are set on the charged Higgs boson production. A model-independent upper limit on the product branching fraction (Formula presented.) is obtained in the mass range mH± = 80–160 GeV, while the upper limit on the cross section times branching fraction (Formula presented.) is set in the mass range mH+ = 180–600 GeV. Here, σ(pp → t(b)H±) stands for the cross section sum (Formula presented.), an upper limit on σ(pp → t(b)H±) of 2.0–0.13 pb is set for mH± = 180–600 GeV. The combination of all considered decay modes and final states is used to set exclusion limits in the mH±−tan β parameter space in different MSSM benchmark scenarios. |