Search for a light charged Higgs boson in top quark decays in pp collisions at s√=7TeV

CMS Collaboration; S Chatrchyan; V Khachatryan

doi:10.1007/JHEP07(2012)143

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Search for a light charged Higgs boson in top quark decays in pp collisions at s√=7TeV

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Search for a light charged Higgs boson in top quark decays in pp collisions at s√=7TeV

CMS Collaboration, S Chatrchyan and V Khachatryan

Journal of high energy physics : JHEP, Vol.2012(7), 143

07/24/2012

DOI: 10.1007/JHEP07(2012)143

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Abstract

Results are presented on a search for a light charged Higgs boson that can be produced in the decay of the top quark t → H+b and which, in turn, decays into τ +ν τ . The analysed data correspond to an integrated luminosity of about 2 fb−1 recorded in protonproton collisions at s√=7TeV by the CMS experiment at the LHC. The search is sensitive to the decays of the top quark pairs tt¯ → H± W ∓ bb¯¯¯ and tt¯ → H±H∓ bb¯¯¯. Various final states have been studied separately, all requiring presence of a τ lepton from H+ decays, missing transverse energy, and multiple jets. Upper limits on the branching fraction B(t → H+b) in the range of 2-4 % are established for charged Higgs boson masses between 80 and 160 GeV, under the assumption that B(H+ → τ +ν τ ) = 1.

Details

Title: Subtitle: Search for a light charged Higgs boson in top quark decays in pp collisions at s√=7TeV
Creators: CMS Collaboration
S Chatrchyan - Yerevan State University
V Khachatryan
Contributors: U Akgun (Contributor) - University of Iowa, Physics and Astronomy
E. A Albayrak (Contributor) - University of Iowa, Physics and Astronomy
B Bilki (Contributor) - University of Iowa, Physics and Astronomy
F Duru (Contributor) - University of Iowa, Physics and Astronomy
A Mestvirishvili (Contributor) - University of Iowa, Physics and Astronomy
J Nachtman (Contributor) - University of Iowa, Physics and Astronomy
C. R Newsom (Contributor) - University of Iowa, Physics and Astronomy
Y Onel (Contributor) - University of Iowa, Physics and Astronomy
S Sen (Contributor) - University of Iowa, Physics and Astronomy
E Tiras (Contributor) - University of Iowa, Physics and Astronomy
J Wetzel (Contributor) - University of Iowa, Physics and Astronomy
T Yetkin (Contributor) - University of Iowa, Physics and Astronomy
K Yi (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: Journal of high energy physics : JHEP, Vol.2012(7), 143
DOI: 10.1007/JHEP07(2012)143
ISSN: 1126-6708
eISSN: 1029-8479
Language: English
Date published: 07/24/2012
Academic Unit: Physics and Astronomy
Record Identifier: 9984307858502771

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