arXiv:0908.1332·v2·High Energy Physics — Phenomenology
Associated production of charged Higgs and top at LHC: the role of the complete electroweak supersymmetric contribution
M. Beccaria (Salento U. & INFN, Lecce)🇮🇹 · G. Macorini (Salento U. & INFN, Lecce)🇮🇹 · L. Panizzi (Trieste U., Dept. Theor Phys)🇮🇹 · F. M. Renard (Montpellier U.)🇫🇷 · C. Verzegnassi (Trieste U., Dept. Theor Phys & INFN, Trieste)🇮🇹
Abstract
The process of charged Higgs production in association with a top quark at the LHC has been calculated at the complete NLO electroweak level both in a Two Higgs Doublets Model and in the Minimal Supersymmetric Standard Model, assuming a mSUGRA breaking scheme. We have numerically explored the size of the one-loop corrections in two typical supersymmetric scenarios, with particular attention to the tan beta dependence, and we have found that they remain perturbatively small but possibly sizable, reaching a 20% limit for extreme values of tan beta, when the complete set of Feynman diagrams is taken into account.
Comments: 22 pages, 5 figures, reference added