CP asymmetry in B→φKS decays in left-right models and its implications for Bs decays -: art. no. 231803

被引：72

作者：

Raidal, M ^{[1
]}

机构：

[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[2] NICPB, EE-10143 Tallinn, Estonia

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.89.231803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In left-right models the gluonic penguin contribution to b-->s (s) over bars transition is enhanced by m(t)/m(b) due to the presence of (V+A) currents and by large values of loop functions. Together those effects may overcome the suppression due to the small left-right mixing angle xiless than or similar to0.013. Two independent new phases in the B-->phiK(S) decay amplitude appearing in a large class of left-right models can modify the time-dependent CP asymmetry in this decay mode by O(1) and explain the recent BABAR and Belle CP asymmetry measurements in this channel. This scenario implies observable deviations from the standard model also in B-s decays which could be measured at Tevatron and LHC.

引用

页数：4

共 69 条

[31] Supersymmetric grand unified theory contributions and model independent extractions of CP phases [J].