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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1011.3531hep-ex
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Bs介子在CDF的新的抑制衰变

New suppressed decays of Bs mesons at CDF

Olga Norniella

摘要:

观测到了新的被抑制的Bs衰变,Bs-> J/PsiK ~*(892)0和Bs->J/PsiKs,并测量了它们的分支比。该测量基于由专用的双μ子触发器收集的CDF数据的5.9 fb-1的积分亮度。对Bs -> J/Psi K* 的观察进行基于切割的优化,而对Bs->J/Psi K * 使用神经网络。除了观察到的新的衰变模式,分支分数的参考B 0衰变的比率进行测量。

英文摘要:

The observation of new suppressed Bs decays, Bs-> J/Psi K* (892)0 and Bs->J/Psi Ks, and the measurement of their branching ratios are presented. This measurement is based on an integrated luminosity of 5.9 fb-1 of CDF data collected by a dedicated di-muon trigger. A cut based optimization is carried out for the observation of Bs -> J/Psi K*, while a neural network is used for the Bs->J/Psi Ks. In addition to the observation of the new decay modes, the ratios of branching fractions to the reference B0 decays are measured.

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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