标题： 用BABAR探测器测量B介子独产生衰变到魅夸克偶素和K或K*的分支比 显示英文标题

标题： Measurement of exclusive B decays to charmonium and K or K* branching fractions with the BABAR detector

摘要： 我们报告了中性及带电B介子衰变为包含一个魅夸克态和一个轻味奇异介子的两体末态的分支比测量的初步结果。 考虑的魅夸克态包括J/psi、psi(2S)和chic_c1，轻介子为K或K*。 我们使用了在斯坦福直线加速器中心的PEP-II储存环上用BABAR探测器收集的大约12400万对BBbar事件样本。 显示英文摘要

摘要： We report preliminary results on the measurement of branching fractions of exclusive decays of neutral and charged B mesons into two-body final states containing a charmonium state and a light strange meson. The charmonium mesons considered are J/psi, psi(2S) and chic_c1, and the light mesons are either K or K*. We use a sample of about 124 million BBbar events collected with the BABAR detector at the PEP-II storage ring at the Stanford Linear Accelerator Center.