CP violation in B --> phi K_S decay at large tan(beta)
Abstract
Description
We consider the chargino contribution to the CP violation in B \to ϕK_S decay in the minimal supersymmetric standard model at large \tanβ. 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.
6 pages, 2 figures, talk presented at 2nd International Conference on Flavor Physics
6 pages, 2 figures, talk presented at 2nd International Conference on Flavor Physics