A search for a charged Higgs boson is performed with a data sample corresponding to an integrated luminosity of 19.7 ± 0.5 fbâ1 collected with the CMS detector in proton-proton collisions at âs= 8,TeV. The charged Higgs boson is searched for in top quark decays for mH± < mt â mb, and in the direct production pp â t(b)H± for mH± > mt â mb. The H± â ÏÂ±Î½Ï and H± â tb decay modes in the final states Ïh+jets, μÏh, â+jets, and âââ (â =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± = 80â160 GeV, while the upper limit on the cross section times branching fraction (Formula presented.) is set in the mass range mH+ = 180â600 GeV. Here, Ï(pp â t(b)H±) stands for the cross section sum (Formula presented.), an upper limit on Ï(pp â t(b)H±) of 2.0â0.13 pb is set for mH± = 180â600 GeV. The combination of all considered decay modes and final states is used to set exclusion limits in the mH±âtan β parameter space in different MSSM benchmark scenarios.
Search for a charged Higgs boson in pp collisions at root s=8 TeV
CAPPELLO, GIGI;CHIORBOLI, MASSIMILIANO;COSTA, Salvatore;GIORDANO, FERDINANDO;POTENZA, Renato Carlo;TRICOMI, Alessia Rita;TUVE', Cristina Natalina;
2015-01-01
Abstract
A search for a charged Higgs boson is performed with a data sample corresponding to an integrated luminosity of 19.7 ± 0.5 fbâ1 collected with the CMS detector in proton-proton collisions at âs= 8,TeV. The charged Higgs boson is searched for in top quark decays for mH± < mt â mb, and in the direct production pp â t(b)H± for mH± > mt â mb. The H± â ÏÂ±Î½Ï and H± â tb decay modes in the final states Ïh+jets, μÏh, â+jets, and âââ (â =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± = 80â160 GeV, while the upper limit on the cross section times branching fraction (Formula presented.) is set in the mass range mH+ = 180â600 GeV. Here, Ï(pp â t(b)H±) stands for the cross section sum (Formula presented.), an upper limit on Ï(pp â t(b)H±) of 2.0â0.13 pb is set for mH± = 180â600 GeV. The combination of all considered decay modes and final states is used to set exclusion limits in the mH±âtan β parameter space in different MSSM benchmark scenarios.File | Dimensione | Formato | |
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Khachatryan2015_Article_SearchForAChargedHiggsBosonInP.pdf
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