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Title: CP violation induced by the double resonance for pure annihilation decay process in perturbative QCD

In a perturbative QCD approach we study the direct CP violation in the pure annihilation decay process of $$\bar{B}$$$0\atop{s}$$→π +π -π +π - induced by the ρ and ω double resonance effect.Generally, the CP violation is small in the pure annihilation type decay process. But, we find that the CP violation can be enhanced by doubleinterference when the invariant masses of the π + π - pairs are in the vicinity of the ω resonance. For the decay process of $$\bar{B}$$$0\atop{s}$$→π +π -π +π -, the CP violation can reach ACP($$\bar{B}$$$0\atop{s}$$→π +π -π +π -)=27.20$$+0.05+0.28+7.13\atop{-0.15-0.31-6.11}$$%.
Authors:
 [1] ;  [2] ;  [1] ;  [1]
  1. Henan Univ. of Technology, Zhengzhou (China). College of Science
  2. Guangxi Normal Univ., Guilin (China). Dept. of Physics
Publication Date:
Grant/Contract Number:
AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 77; Journal Issue: 8; Journal ID: ISSN 1434-6044
Publisher:
Springer
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1411662