# Impact of Family Non-universal $Z^\prime$ Boson on Pure Annihilation $B_s \to \pi^+ \pi^-$ and $B_d \to K^+ K^-$ Decays

@article{Li2015ImpactOF, title={Impact of Family Non-universal \$Z^\prime\$ Boson on Pure Annihilation \$B\_s \to \pi^+ \pi^-\$ and \$B\_d \to K^+ K^-\$ Decays}, author={Ying Li and Wenlve Wang and Dongshuo Du and Zuohong Li and Hong-xia Xu}, journal={arXiv: High Energy Physics - Phenomenology}, year={2015} }

We study the $B_s \to \pi^+ \pi^-$ and $B_d \to K^+ K^-$ decays in the standard model and the family non-universal $Z^\prime$ model. Since none of the quarks in final states is the same as the initial quark, these decay modes can occur only via power-suppressed annihilation diagrams. Despite the consistence of the standard model prediction with the available data, there is a surviving room for a light $Z^\prime$ boson. Taking into account the $Z^\prime$ contribution, we find theoretical results…

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