Journal of High Energy Physics

, 2011:26

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

Authors

  • Katri Huitu
    • Department of PhysicsUniversity of Helsinki, and Helsinki Institute of Physics
  • Santosh Kumar Rai
    • Department of Physics, and Oklahoma Center for High Energy PhysicsOklahoma State University
  • Kumar Rao
    • Department of PhysicsUniversity of Helsinki, and Helsinki Institute of Physics
  • Saurabh D. Rindani
    • Theoretical Physics DivisionPhysical Research Laboratory
    • Theoretical Physics DivisionPhysical Research Laboratory
Open AccessArticle

DOI: 10.1007/JHEP04(2011)026

Cite this article as:
Huitu, K., Kumar Rai, S., Rao, K. et al. J. High Energ. Phys. (2011) 2011: 26. doi:10.1007/JHEP04(2011)026

Abstract

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 tW production in the Standard Model. We then show that an azimuthal asymmetry, 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.

Keywords

Higgs PhysicsBeyond Standard ModelSupersymmetric Standard Model
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© The Author(s) 2011

Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.