Lepton polarization asymmetry in $B_(s,d)^*$ arrow $μ^+ μ^-$ with new Z' couplings

We study the effect of non-universal $Z'$ boson on the rare leptonic decay modes of $B_s^*$ mesons, mediated by $b arrow sll$ quark transition. Rare B decays are sensitive to various new physics operators. As B mesons are composite particles, such decay modes of the excited states are ideal for probing new physics beyond the standard model. We have constrained our model parameters from $B_(s,d)-$ {B bar(s,d)}$mixing data to predict the lepton polarization asymmetry of$B_(s,d)^*$arrow$μ^+ μ^-$channel. It is found that this asymmetry deviates from its SM prediction along with the$Z'$effect

No reviews yet.

No comments yet.