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arXiv · 1103.4272

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

Andreas Crivellin·Lars Hofer·Janusz Rosiek
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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.

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Andreas Crivellin, Lars Hofer, Janusz Rosiek. 2013-08-22. Complete resummation of chirally-enhanced loop-effects in the MSSM with non-minimal sources of flavor-violation. https://doi.org/10.1007/jhep07(2011)017

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