Charm and bottom quark masses: An update
Charm and bottom quark masses: An update
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DOI：
10.1103/physrevd.80.074010
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发表时间：
2009-10-01
影响因子：
5
通讯作者：
Sturm, C.
中科院分区：
文献类型：
--
作者：
Chetyrkin, K. G.;Kuehn, J. H.;Sturm, C.
利用重夸克真空极化的新四圈结果和正负电子湮灭中底夸克产生的新数据，对用求和定则确定粲夸克和底夸克质量进行了更新.先前基于最低矩的粲夸克质量的结果，m（c）（3 GeV）= 0.986（13）GeV，得到了来自更高矩的新结果的支持，这些结果导致了具有可比误差的一致值。底夸克的新值mb（10 GeV）= 3.610（16）GeV，对应于m（B）（m（B））= 4.163（16）GeV，利用了新的数据和新的微扰结果，与先前的测定一致。
Using new four-loop results for the heavy quark vacuum polarization and new data for bottom quark production in electron-positron annihilation, an update on the determination of charm-and bottom-quark masses through sum rules has been performed. The previous result for the charm-quark mass, m(c)(3 GeV) = 0.986(13) GeV, based on the lowest moment, is supported by the new results from higher moments which lead to consistent values with comparable errors. The new value for the bottom quark, mb(10 GeV) = 3.610(16) GeV, corresponding to m(b)(m(b)) = 4.163(16) GeV, makes use of both the new data and the new perturbative results and is consistent with the earlier determination.