Two-loop renormalization group analysis of hadronic decays of a charged Higgs boson

Abstract

We calculate next-to-leading QCD corrections to the decay $H^{+}\to u\bar{d}$ for generic up and down quarks in the final state. A recently developed algorithm for evaluation of massive two-loop Feynman diagrams is employed to calculate renormalization constants of the charged Higgs boson. The origin and summation of large logarithmic corrections to the decay rate of the top quark into a lighter charged Higgs boson is also explained.

10 pages + 4 figures, PostScript)

References in corpus (5)

• The renormalization of the axial anomaly in dimensional regularization
• Large momentum expansion of two-loop self-energy diagrams with arbitrary masses
• QCD corrections to the charged Higgs decay of a heavy quark
• QCD Corrections to the Charged-Higgs-Boson Decay of a Heavy Top Quark
• Electroweak corrections to decays involving a charged Higgs boson

Cited by in corpus (2)

• Effective lagrangian for the tbH^+ interaction in the MSSM and charged Higgs phenomenology
• QCD corrections to charged Higgs-mediated $b\to c\tau \nu$ decay