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 t...
Supported by National Science Council of Taipei,(NSC 97-2112-M-008-002-MY3,NCTS)
; National Natural Science Foundation of China (10735080,11075168,10525523)
; National Basic Research Program of China (973) (2010CB833000)