Bottom-quark mass from finite energy QCD sum rules

Bottom-quark mass from finite energy QCD sum rules
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来自有限能量 QCD 和规则的底夸克质量

DOI:
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发表时间:
2011
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通讯作者:
K. Schilcher
K. Schilcher
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文献类型:
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作者:
S. Bodenstein;J. Bordes;C. Dominguez;J. Peñarrocha;K. Schilcher

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用有限能量QCD求和规则来确定底夸克质量,其中包括反和正矩积分核。在参考比例尺为$10,{GeV}$的$Ar{Ext{MS}}$方案中得到的结果为$Ar{m}_b(10,Ext{GeV})=3623(9),Ext{MeV}$。该值转化为标度不变质量$ar{m}_b(ar{m}_b)=4171(9),{MeV}$。这个结果的总不确定度是所有方法中最低的,并且对影响其他QCD求和规则确定的一些系统不确定度不那么敏感。
Finite energy QCD sum rules involving both inverse and positive moment integration kernels are employed to determine the bottom quark mass. The result obtained in the $ar{ ext {MS}}$ scheme at a reference scale of $10, {GeV}$ is $ar{m}_b(10, ext{GeV})= 3623(9), ext{MeV}$. This value translates into a scale invariant mass $ar{m}_b(ar{m}_b) = 4171 (9), {MeV}$. This result has the lowest total uncertainty of any method, and is less sensitive to a number of systematic uncertainties that affect other QCD sum rule determinations.