Top mass dependent alpha_s^3 corrections to B-meson mixing in the MSSM

Details Top mass dependent alpha_s^3 corrections to B-meson mixing in the MSSM Top mass dependent alpha_s^3 corrections to B-meson mixing in the MSSM

2011-11-03

arxiv.org/abs/1111.0940v1

JHEP, 1201:120, 2012

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 6 figures

Scientific paper

We compute the top mass dependent NLO strong interaction matching conditions to the Delta F=2 effective Hamiltonian in the general MSSM. We study the relevance of such corrections, comparing its size with that of previously known NLO corrections in the limit mt->0, in scenarios with degeneracy, alignment, and hierarchical squarks. We find that, while these corrections are generally small, there are regions in the parameter space where the contributions to the Wilson coefficients C1 and C4 could partially overcome the expected suppression m_t/M_SUSY.

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