三味格点量子色动力学中Bc介子的质量
Mass of the Bc meson in three-flavor lattice QCD.
作者信息
Allison Ian F, Davies Christine T H, Gray Alan, Kronfeld Andreas S, Mackenzie Paul B, Simone James N
机构信息
Department of Physics and Astronomy, Glasgow University, Glasgow, Scotland, United Kingdom.
出版信息
Phys Rev Lett. 2005 May 6;94(17):172001. doi: 10.1103/PhysRevLett.94.172001.
We use lattice QCD to predict the mass of the Bc meson. We use the MILC Collaboration's ensembles of lattice gauge fields, which have a quark sea with two flavors much lighter than a third. Our final result is mBc = 6304+/-12(+18)(-0) MeV. The first error bar is a sum in quadrature of statistical and systematic uncertainties, and the second is an estimate of heavy-quark discretization effects.
我们使用格点量子色动力学来预测Bc介子的质量。我们采用了米尔克合作组给出的格点规范场系综，其夸克海包含有两种比第三种约轻得多的味。我们的最终结果是mBc = 6304±12（+18）（-0）兆电子伏特。第一个误差线是统计和系统不确定性的平方和，第二个是重夸克离散化效应的估计值。
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