Single Top Events as a Source of Light Charged Higgs in the Fully Hadronic Final State at LHC

Abstract

The single top production proceeds through different channels at LHC. The t-channel production which has a cross section at the level of one third of the ttbar, can be regarded as a source of light charged Higgs boson through top quark decay to charged Higgs. Due to the low jet multiplicity and characteristic kinematic features of this process, a signal selection can be designed to extract charged Higgs signal from the background processes. In this paper, taking MSSM as the theoretical framework, The light charged Higgs signal from single top events is analyzed. The charged Higgs is assumed to decay to tau nu and the hadronic decay of tau leptons is analyzed. Different charged Higgs mass hypotheses are analyzed and a scan over the parameter space (mH+,tanbeta) is performed. It is shown that this process has the potential to exclude large areas of parameter space, while with enough data, a 5 sigma discovery would also be possible. Finally 95% C.L. exclusion and 5 sigma contours are provided for different integrated luminosities of LHC.

12 pages, 11 figures

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Cited by in corpus (8)

• Charged Higgs Search via $A{W}^{\pm }/H{W}^{\pm }$ Channel
• Light Charged Higgs Bosons to AW/HW via Top Decay
• Observability of Heavy Charged Higgs through s-channel Single Top Events at LHC
• Off-diagonal Yukawa Couplings in the s-channel Charged Higgs Production at LHC
• Observability of Charged Higgs through Triple or Double Higgs Production in a General Two Higgs Doublet Model at an e+e- Linear Collider
• Observability of s-channel Heavy Charged Higgs at LHC Using Top Tagging Technique
• The t-channel Charged Higgs Production in Single Top Events at LHC
• Charged Higgs observability in the single top production channel at LHC