B meson mixing in effective theories of supersymmetric Higgs bosons

被引:7
作者
Altmannshofer, Wolfgang [1 ]
Carena, Marcela [1 ,2 ,3 ]
机构
[1] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA
[2] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[3] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA
来源
PHYSICAL REVIEW D | 2012年 / 85卷 / 07期
基金
美国能源部;
关键词
MINIMAL FLAVOR VIOLATION; ELECTRIC-DIPOLE MOMENTS; CP-VIOLATION; MSSM; MODELS; OPERATORS; BREAKING; PHYSICS;
D O I
10.1103/PhysRevD.85.075006
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study a minimal flavor-violating extension of the minimal supersymmetric standard model, where higher-dimensional operators in the Kahler potential induce tree-level nonholomorphic Higgs couplings that are controlled by the scale of the physics beyond the minimal supersymmetric standard model and analyze their possible impact on CP violation in B-s and B-d mixing. We consider results on the time-dependent CP asymmetries in B-s -> psi phi and B-s -> psi f(0) from LHCb, in B-s -> psi phi from CDF and D0 and in B -> psi K-S from the B factories as well as the measurement of an anomalous like-sign dimuon charge asymmetry at D0. Taking into account the stringent bounds on the branching ratio of the rare B-s -> mu(+)mu(-) decay, we investigate to which extent the framework allows to address the observed (2-3)sigma discrepancies in fits of the unitarity triangle. We find that a nonstandard B-d mixing phase, that is in agreement with the current bounds on CP violation in B-s mixing, requires the presence of higher-dimensional operators both in the Kahler potential and the superpotential. The corresponding region of parameter space is characterized by small tan beta similar to 5, a light Higgs spectrum with masses below <= 400 GeV and will be probed by future measurements at LHCb.
引用
收藏
页数:11
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