Study of B ---> K(*) l+ l- Decays in the Family Non-universal Z' Models
Journal
Chinese Journal of Physics
Journal Volume
C36
Pages
14-24
Date Issued
2009-11
Author(s)
Abstract
In a combined investigation of B → K (*)l +l - decays, constraints on the related couplings in family non-universal Z′ models are derived. We find that within the allowed parameter space, the recently observed forward-backward asymmetry in the B → K*l +l - decay can be explained by flipping the signs of the Wilson coefficients C 9 eff and C 10. With the obtained constraints, we also calculate the branching ratio of the B s → μ +μ - decay. The upper bound of our prediction is nearly an order of magnitude smaller than the upper bound given by the CDF Collaboration recently. © 2012 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.
Type
journal article