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Complete resummation of chirally-enhanced loop-effects in the MSSM with non-minimal sources of flavor-violation

By Andreas Crivellin, Lars Hofer and Janusz Rosiek

Abstract

In this article we present the complete resummation of the leading chirally-enhanced corrections stemming from gluino-squark, chargino-sfermion and neutralino-sfermion loops in the MSSM with non-minimal sources of flavor-violation. We compute the finite renormalization of fermion masses and the CKM matrix induced by chirality-flipping self-energies. In the decoupling limit Msusy>>v, which is an excellent approximation to the full theory, we give analytic results for the effective gaugino(higgsino)-fermion-sfermion and the Higgs-fermion-fermion vertices. Using these vertices as effective Feynman rules, all leading chirally-enhanced corrections can consistently be included into perturbative calculations of Feynman amplitudes. We also give a generalized parametrization for the bare CKM matrix which extends the classic Wolfenstein parametrization to the case of complex parameters lambda and A.Comment: 31 pages, 3 figures; typos correcte

Topics: High Energy Physics - Phenomenology
Year: 2013
DOI identifier: 10.1007/JHEP07(2011)017
OAI identifier: oai:arXiv.org:1103.4272
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