Probing top charged-Higgs production using top polarization at the Large Hadron Collider

Details Probing top charged-Higgs production using top polarization at the Large Hadron Collider Probing top charged-Higgs production using top polarization at the Large Hadron Collider

2010-12-02

arxiv.org/abs/1012.0527v2

JHEP04(2011)026

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 18 Figures, Discussions about backgrounds and NLO corrections added, figures modified, references added, Version pub

Scientific paper

10.1007/JHEP04(2011)026

We study single top production in association with a charged Higgs in the type II two Higgs doublet model at the Large Hadron Collider. The polarization of the top, reflected in the angular distributions of its decay products, can be a sensitive probe of new physics in its production. We present theoretically expected polarizations of the top for top charged-Higgs production, which is significantly different from that in the closely related process of t-W production in the Standard Model. We then show that an azimuthal symmetry, constructed from the decay lepton angular distribution in the laboratory frame, is a sensitive probe of top polarization and can be used to constrain parameters involved in top charged-Higgs production.

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