Testing CPT invariance in Bd0-(B)over-bard0 and Bs0-(B)over-bars0 oscillations

被引：3

作者：

Ren, Ping ^{[1
]}

Xing, Zhi-zhong ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

来源：

PHYSICAL REVIEW D | 2007年 / 76卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.76.116001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recent CDF and D0 measurements of B-s(0)-(B) over bar (0)(s) mixing make it possible to search for CP violation and test CPT symmetry in a variety of B-s decays. Considering both coherent B-d(0)(B) over bar (0)(d) decays at the Upsilon(4S) resonance and coherent B-s(0)(B) over bar (0)(s) decays at the Upsilon(5S) resonance, we formulate their time-dependent and time-integrated rates by postulating small CPT violation in B-d(0)-(B) over bar (0)(d) and B-s(0)-(B) over bar (0)(s) oscillations. We show that the opposite-sign dilepton events from either C-odd or C-even B-q(0)(B) over bar (0)(q) states (for q=d or s) can be used to determine or constrain the CPT-violating parameter at a super-B factory. The possibility of distinguishing between the effect of CPT violation and that of Delta B=-Delta Q transitions is also discussed.

引用

页数：6

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