Search for a light charged Higgs boson in the decay channel H+ - GT c(s)over-bar in t(t)over-bar events using pp collisions at root s=7 TeV with the ATLAS detector
Popovic, D. S.
Vranješ Milosavljević, Marija
ATLAS Collaboration (ukupan broj autora: 2895)
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A search for a charged Higgs boson (H+) in t (t) over bar decays is presented, where one of the top quarks decays via t - GT H(+)b, followed by H+ - GT two jets (c (s) over bar). The other top quark decays to Wb, where the W boson then decays into a lepton (e/mu) and a neutrino. The data were recorded in pp collisions at root s = 7 TeV by the ATLAS detector at the LHC in 2011, and correspond to an integrated luminosity of 4.7 fb(-1). With no observation of a signal, 95 % confidence level (CL) upper limits are set on the decay branching ratio of top quarks to charged Higgs bosons varying between 5 % and 1 % for H+ masses between 90 GeV and 150 GeV, assuming B(H+ - GT c (s) over bar) = 100 %.
Source:European Physical Journal C. Particles and Fields, 2013, 73, 6
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