K{sup 0} {sup {yields}} {sigma}(K-bar{sup 0}) and B{sup 0} {sup {yields}} B-bar{sup 0} transitions in the minimal supersymmetric standard model involving explicit CP violation in the Higgs sector
- Moscow State University, Institute of Nuclear Physics (Russian Federation)
Mixing in the systems of neutral K{sup 0} and B{sup 0} mesons is considered within the minimal supersymmetric standard model (MSSM) containing a type-II Yukawa sector and featuring an explicit CP violation in the Higgs potential. In the case of a strong mixing of CP-even and CP-odd states, the model admits the presence of a light charged Higgs boson. Basic mixing parameters are calculated. These include the mass difference {delta}m{sub LS} between neutral kaons and the parameter {epsilon}, which characterizes the amount of an indirect CP violation (that is, that which arises owing to an ultraweak mixing of CP-invariant and CP-noninvariant components). In the limit of the low-energy one-loop approximation, it is shown that, for the K{sup 0} mesons, the contribution of nonstandard-physics effects to the mass splitting of the neutral kaons and an indirect CP violation are very small and are weakly dependent on the mass of the charged Higgs boson. Under certain conditions, the nonstandard contributions for the B{sup 0}-{sigma}(B-bar{sub d}{sup 0}) and B{sup 0}-{sigma}(B-bar{sub s}{sup 0}) systems may become somewhat more substantial, which constrains the MSSM parameter space.
- OSTI ID:
- 21077537
- Journal Information:
- Physics of Atomic Nuclei, Vol. 71, Issue 2; Other Information: DOI: 10.1007/s11450-008-2018-3; Copyright (c) 2008 Pleiades Publishing, Ltd; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
- Country of Publication:
- United States
- Language:
- English
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