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arXiv 0705.2335hep-ph
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精确的粲质量和底夸克质量

Precise Charm and Bottom quark masses

Johann H. Kuhn, Matthias Steinhauser, Christian Sturm

摘要:

在粲和底阈区的总截面σ(e^+e^->强子)的新数据与改进的理论分析相结合,其中包括最近的四圈计算,以确定短距离\bar{MS}粲和底夸克质量。对\bar{MS} -质量的最终结果,m_c(3 GeV)=0.986(13)GeV和m_b(10 GeV)=3.609(25)GeV与以前的类似研究一致,但比以前的研究精确得多。

英文摘要:

New data for the total cross section sigma(e^+e^- --> hadrons) in the charm and bottom threshold region are combined with an improved theoretical analysis, which includes recent four-loop calculations, to determine the short distance \bar{MS} charm and bottom quark masses. The final result for the \bar{MS}-masses, m_c(3 GeV)=0.986(13) GeV and m_b(10 GeV)=3.609(25) GeV is consistent with but significantly more precise than a similar previous study.

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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