Detecting Heavy Charged Higgs Bosons at the LHC with Four b-Quark Tags

Details Detecting Heavy Charged Higgs Bosons at the LHC with Four b-Quark Tags Detecting Heavy Charged Higgs Bosons at the LHC with Four b-Quark Tags

1999-06-03

arxiv.org/abs/hep-ph/9906230v2

Phys.Rev.D61:055011,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, latex, uses axodraw and epsfig, 4 figures (version to be published in Phys. Rev. D: significant changes including be

Scientific paper

10.1103/PhysRevD.61.055011

We investigate the signature of a heavy charged Higgs boson of the Minimal Supersymmetric Standard Model in the lepton plus multi-jet channel at the Large Hadron Collider with four $b$-tags. The signal is the gluon-gluon fusion process $gg\to t\bar b H^-$, followed by the $H^-\to \bar t b$ decay, while the main background is from $gg\to t\bar t b\bar b$. We find that the two can be separated effectively by kinematic cuts and mass reconstruction, but the signal size is not very large in the end. Nonetheless, with a good $b$-tagging efficiency, $\epsilon_b\sim50%$, this channel can provide a viable signature over a limited but interesting range of the parameter space.

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