Matching lattice and continuum axial-vector and vector currents with nonrelativistic QCD and highly improved staggered quarks

被引：28
|
作者：
Monahan, Christopher [1 ]
Shigemitsu, Junko [2 ]
Horgan, Ron [3 ]
机构：
[1] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA
[2] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
[3] Univ Cambridge, Ctr Math Sci, DAMTP, Cambridge CB3 0WA, England
来源：
PHYSICAL REVIEW D | 2013年 / 87卷 / 03期
关键词：
D O I：
10.1103/PhysRevD.87.034017
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We match the continuum and lattice axial-vector and vector currents at one loop in perturbation theory. For the heavy quarks we use the nonrelativistic QCD (NRQCD) action and for the light quarks the highly improved staggered quark (HISQ) action. We present results for both massless and massive HISQ quarks and as part of the matching procedure we include a discussion of the one loop HISQ renormalization parameters. DOI: 10.1103/PhysRevD.87.034017
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页数：16
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