K{sup 0} {yields} and B{sup 0} {yields} B-bar{sup 0} transitions in the minimal supersymmetric standard model involving explicit CP violation in the Higgs sector

Journal Article · Fri Feb 15 04:00:00 EST 2008 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S106377880802018X· OSTI ID:22028164

Dubinin, M N ^[1]

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1. 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 explicitCP 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{sub d}{sup 0}-B-bar{sub d}{sup 0} and B{sub s}{sup 0}-B-bar{sub s}{sup 0} systems may become somewhat more substantial, which constrains the MSSM parameter space.

• OSTI ID: 22028164
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 2 Vol. 71; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
APPROXIMATIONS
B NEUTRAL MESONS
COLOR MODEL
CP INVARIANCE
HIGGS BOSONS
HIGGS MODEL
KAONS NEUTRAL
MASS DIFFERENCE
POTENTIALS
REST MASS
STANDARD MODEL
SUPERSYMMETRY