Reevaluating R-parity violating supersymmetry effects in Bs0 - (B)over-bars0 mixing

被引：0
|
作者：
Wang, Ru-Min [1 ]
Xu, Yuan-Guo [1 ]
Liu, Mo-Lin [1 ]
Li, Bing-Zhong [1 ]
机构：
[1] Xinyang Normal Univ, Coll Phys & Elect Engn, Xinyang, Peoples R China
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2010年 / 12期
基金：
美国国家科学基金会;
关键词：
QCD Phenomenology; Supersymmetry Phenomenology; ORDER QCD CORRECTIONS; WIDTH DIFFERENCE; DECAYS; CONSTRAINTS; ASYMMETRIES; PHYSICS;
D O I：
10.1007/JHEP12(2010)034
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Recently, the CDF and DO collaborations have claimed that the CP violating phase in B-s(0) - (B) over bar (0)(s) mixing is large, which is contrary to the expectations in the Standard Model. Such a large phase suggests New Physics contributions to B-s(0) - (B) over bar (0)(s) mixing. Motivated by this, we reevaluate the constraints on R-parity violating contributions, including baryon number violating couplings not considered before, to the mixing mass matrix element M-s(12) from the recent measurements of B-s(0) - (B) over bar (0)(s) mixing. We show that present data allow us to put quite strong constraints on both the magnitudes and the weak phases of the R-parity violating parameters. Some of these bounds are better than the existing ones, and some bounds are obtained for the first time. Near future experiments at the Tevatron, the LHC and B-factories can shrink or reveal the relevant parameter spaces of the R-parity violating couplings.
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收藏
页数：17
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