CP violation in B --> phi K_S decay at large tan(beta)
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
We consider the chargino contribution to the CP violation in B \to \phi K_S decay in the minimal supersymmetric standard model at large \tan\beta. It is shown that the Wilson coefficient C_{8g} of the chromomagnetic penguin operator can be significantly enhanced by the chargino-mediated diagrams while satisfying other direct/indirect experimental constraints. The enhanced C_{8g} allows large deviation in the CP asymmetry from the standard model prediction.
Cite
@article{arxiv.hep-ph/0312101,
title = {CP violation in B --> phi K_S decay at large tan(beta)},
author = {Seungwon Baek},
journal= {arXiv preprint arXiv:hep-ph/0312101},
year = {2007}
}
Comments
6 pages, 2 figures, talk presented at 2nd International Conference on Flavor Physics