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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1012.1498hep-ex
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用BaBar实验寻找B+到D+ K(*)0的衰变

Search for B+ to D+ K(*)0 decays with the BaBar experiment

Xavier Prudent

摘要:

我们报告了在SLAC的PEP-II非对称能量e+e-对撞机上用BaBar探测器收集的约4.65亿个BBbar对事件样本中寻找B+到D+ K 0和B+到D+ K*0的罕见衰变。我们没有发现这两种模式的显著证据,我们设定了BF(B+到D+ K 0)<2.9 x 10^-6和BF(B+到D+ K*0)< 3.0 x 10^-6的分支分数的90%概率上限。

英文摘要:

We report a search for the rare decays B+ to D+ K0 and B+ to D+ K*0 in an event sample of approximately 465 million BBbar pairs collected with the BaBar detector at the PEP-II asymmetric-energy e+e- collider at SLAC. We find no significant evidence for either mode and we set 90% probability upper limits on the branching fractions of BF(B+ to D+ K0) < 2.9x 10^-6 and BF(B+ to D+ K*0) < 3.0 x 10^-6.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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