We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Large strong phases and CP violation in the annihilation processes B̄<sup>0</sup>→K<sup>+</sup>K<sup>-</sup>, K<sup>*±</sup>K<sup>∓</sup>, K<sup>*+</sup>K<sup>*-</sup>.
- Authors
Su, F.; Wu, Y.-L.; Yang, Y.-D.; Zhuang, C.
- Abstract
The strong phases and CP violation in the rare B̄0→K+K-, K*±K∓, K*+K*- decays are investigated. As these decays proceed only via annihilation type diagrams in the standard model (SM), a dynamical gluon mass is introduced to avoid the infrared divergence in the soft endpoint regions. The Cutkosky rule is adopted to deal with a physical-region singularity of the on-mass-shell quark propagators, which leads to a big imaginary part and hence a large strong phase. As a consequence, large CP asymmetries are predicted in those decay modes due to a big interference between the annihilation amplitudes from penguin and tree operators, which may be tested in future more precise experiments.
- Subjects
B meson decay; CP violation; HADRON decay; QUARKS; ELECTROMAGNETIC mass shift; GLUONS
- Publication
European Physical Journal C -- Particles & Fields, 2006, Vol 48, Issue 2, p401
- ISSN
1434-6044
- Publication type
Article
- DOI
10.1140/epjc/s10052-006-0029-1