K^0 - \bar K^0, B^0 - \bar B^0 mixings in the MSSM with explicit CP violation in the Higgs sector

Details K^0 - \bar K^0, B^0 - \bar B^0 mixings in the MSSM with explicit CP violation in the Higgs sector K^0 - \bar K^0, B^0 - \bar B^0 mixings in the MSSM with explicit CP violation in the Higgs sector

2007-11-30

arxiv.org/abs/0711.5023v1

Phys.Atom.Nucl.71:374-387,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 7 figures, 5 tables

Scientific paper

10.1007/s11450-008-2018-3

We consider the K^0 - \bar K^0 and B^0 - \bar B^0 mixings in the MSSM with the two-Higgs-doublet scalar sector featuring explicit CP violation, and the Yukawa sector of type II. In the case of strong mixing between CP-odd and CP-even states the existence of light charged Higgs is allowed in the model. The mass splitting \Delta m_{LS} and the amount of indirect CP violation \epsilon are calculated. In the limit of effective low-energy approximation the nonstandard effects are shown to be negligibly small in \Delta m_{LS} and \epsilon for the K^0-mesons, being almost independent on the charged Higgs boson mass. However, for the B_d^0 - \bar B_d^0 and B_s^0 - \bar B_s^0 systems the effects of nonstandard physics are shown to be larger, limiting the MSSM parameter space.

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