Associated production of a charged Higgs boson and top quark at LHC: The role of the complete electroweak supersymmetric contribution

作者：Beccaria M^*; Macorini G; Panizzi L; Renard F M; Verzegnassi C

来源：Physical Review D - Particles, Fields, Gravitation and Cosmology, 2009, 80(5): 053011.

DOI：10.1103/PhysRevD.80.053011

The process of charged Higgs production in association with a top quark at the LHC has been calculated at the complete next-to-leading-order electroweak level both in a two-Higgs-doublet model and in the minimal supersymmetric standard model, assuming a minimal supergravity 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.

• 出版日期2009-9