标题： $B_s^0 \to D_s^-a_1^+$衰变道在$B_s^0$混合研究中 显示英文标题

标题： $B_s^0 \to D_s^-a_1^+$ decay channel in the $B_s^0$-mixing studies

摘要： $B_s^0 \to D_s^-a_1^+, D_s^- \to \phi \pi^- \to K^+K^-\pi^-, a_1^+ \to \rho^0 \pi^+ \to \pi^+ \pi^- \pi^+$衰变链在未来的ATLAS$B_s$混合实验中对$B_s$重建的实用性进行了研究。 结果显示，这种衰变通道在这一目的上的适用性几乎与之前研究过的$B_s^0 \to D_s^-\pi^+$相当。 显示英文摘要

摘要： The usefulness of the $B_s^0 \to D_s^-a_1^+, D_s^- \to \phi \pi^- \to K^+K^-\pi^-, a_1^+ \to \rho^0 \pi^+ \to \pi^+ \pi^- \pi^+$ decay chain is investigated for the $B_s$-reconstruction in the future ATLAS $B_s$-mixing experiment. It is shown that this decay channel is almost as suitable for this purpose as previously studied $B_s^0 \to D_s^-\pi^+$.