Impact of Nonleptonic B¯d , s Decay Modes on B¯ → K¯∗μ+μ- Process

We scrutinize the effect of nonleptonic B decay modes on the branching ratio and angular observables of B¯ → K¯∗μ+μ- process involving b→ s quark level transition in the non-universal Z′ model. The new couplings are constrained by using the experimental limits on the branching ratios of Bd→ πK, Bd→ ρK, and Bs→ η′η′, K∗K∗ nonleptonic processes. Using the allowed parameter space, we perform an angular analysis of the B¯ → K¯∗μ+μ- process. We observe significant impact of nonleptonic decay modes on B¯ → K¯∗μ+μ- observables. © 2021, Springer Nature Singapore Pte Ltd