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arXiv 0710.3498hep-ex
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CDF的B_s混合和B强子寿命

B_s Mixing and B Hadron Lifetimes at CDF

Michael Milnik

摘要:

本文给出了利用1.0 fb^{-1}的B_s系统混频测量数据和几个B强子寿命测量数据的CDF结果。得到Δm_s=17.77 ± 0.1 ± 0.07 ps^{-1},cτ(Λ_b)=473.8 ± 23.1 ± 3.5 μm。后者比世界平均水平高3 sigma以上,但与HQE计算结果合理一致。

英文摘要:

We present the CDF results using 1.0 fb^{-1} of data on the mixing frequency measurement in the B_s system and the lifetime measurements of several B hadrons. We obtain Δm_s=17.77 +- 0.1 +- 0.07 ps^{-1} and cτ(Λ_b)=473.8 +- 23.1 +- 3.5 μm. The later one is more than 3 sigma above the world average, but in reasonable agreement with HQE calculations.

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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