Probing top charged-Higgs production using top polarization at the Large Hadron Collider
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.
KeywordsHiggs Physics Beyond Standard Model Supersymmetric Standard Model
- J.F. Gunion, H.E. Haber, G.L. Kane and S. Dawson, The Higgs Hunters Guide, Westview Press, Boulder, CO (2000).Google Scholar
- G.C. Branco, L. Lavoura and J.P. Silva, CP Violation, Int. Ser. Monogr. Phys. 103 (1999) 1.Google Scholar
- S. Lowette, J. Heyninck and P. Vanlaer, Heavy Charged MSSM Higgs Bosons in the H ± → tb Decay in CMS, Report No. CMS CR 2004/031.Google Scholar
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.