Study of Bs0 → μ+μ- and Bd0 → μ+μ- decays in flavor-changing Z′ models

被引:2
|
作者
Sahoo, S. [1 ]
Banerjee, D. [1 ]
Kumar, M. [1 ]
机构
[1] Natl Inst Technol, Dept Phys, Durgapur, W Bengal, India
关键词
NEUTRAL CURRENTS; STANDARD MODEL; GAUGE BOSON; CONSTRAINTS; PREDICTION; MESON; MASS; ASYMMETRIES; BOUNDS; HIGGS;
D O I
10.1134/S106377881402015X
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
Recently, the first evidence for the decay B (s) (0) -> mu (+) mu (-) has been announced by the LHCb Collaboration and the measured branching ratio B( (s) (0) -> mu (+)) = (3.2 (-1.2) (+1.5) ) x 10(-9) is in good agreement with the standard model (SM) expectation. It has also reported an upper limit for B(B (d) (0) -> mu (+) mu (-)) < 9.4 x 10(-10) at 95% confidence level. In this paper, we study the B (s) (0) -> mu (+) mu (-) and B (d) (0) -> mu (+) mu (-) rare decays in flavor-changing Z' model. Our estimated branching ratios are enhanced from their SM values and provide signals for new physics.
引用
收藏
页码:224 / 228
页数:5
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