Matching lattice and continuum four-fermion operators with nonrelativistic QCD and highly improved staggered quarks

被引：10

作者：

Monahan, Christopher ^{[1
]}

Gamiz, Elvira ^{[2
,3
]}

Horgan, Ron ^{[4
]}

Shigemitsu, Junko ^{[5
]}

机构：

[1] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA

[2] Univ Granada, CAFPE, E-18071 Granada, Spain

[3] Univ Granada, Dept Fis Teor & Cosmos, E-18071 Granada, Spain

[4] Univ Cambridge, Ctr Math Sci, DAMTP, Cambridge CB3 0WA, England

[5] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

来源：

PHYSICAL REVIEW D | 2014年 / 90卷 / 05期

关键词：

DECAYS;

D O I：

10.1103/PhysRevD.90.054015

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We match continuum and lattice heavy-light four-fermion operators at one loop in perturbation theory. For the heavy quarks we use nonrelativistic QCD and for the massless light quarks the highly improved staggered quark action. We include the full set of Delta B = 2 operators relevant to neutral B mixing both within and beyond the standard model and match through order alpha(s), Lambda(QCD)/M-b, and alpha(s)/(aM(b)).

引用

页数：13

共 30 条

[1] Matching lattice and continuum axial-vector and vector currents with nonrelativistic QCD and highly improved staggered quarks
Monahan, Christopher
Shigemitsu, Junko
Horgan, Ron
PHYSICAL REVIEW D, 2013, 87 (03):
[2] Lattice QCD ensembles with four flavors of highly improved staggered quarks
Bazavov, A.
Bernard, C.
Komijani, J.
DeTar, C.
Levkova, L.
Freeman, W.
Gottlieb, Steven
Zhou, Ran
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Hetrick, J. E.
Laiho, J.
Osborn, J.
Sugar, R. L.
Toussaint, D.
Van de Water, R. S.
PHYSICAL REVIEW D, 2013, 87 (05):
[3] One-loop matching of improved four-fermion staggered operators with an improved gluon action
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Sharpe, Stephen R.
PHYSICAL REVIEW D, 2011, 83 (09):
[4] Perturbative matching of staggered four-fermion operators with hypercubic fat links
Lee, W
Sharpe, S
PHYSICAL REVIEW D, 2003, 68 (05)
[5] Four fermion operator matching with nonrelativistic QCD heavy and asqtad light quarks
Gamiz, Elvira
Shigemitsu, Junko
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PHYSICAL REVIEW D, 2008, 77 (11):
[6] Perturbative matching of the staggered four-fermion operators for ε'/ε -: art. no. 054505
Lee, WJ
PHYSICAL REVIEW D, 2001, 64 (05):
[7] Nonperturbative comparison of clover and highly improved staggered quarks in lattice QCD and the properties of the φ meson
Chakraborty, Bipasha
Davies, C. T. H.
Donald, G. C.
Koponen, J.
Lepage, G. P.
PHYSICAL REVIEW D, 2017, 96 (07)
[8] Non-perturbative renormalization of left-left four-fermion operators in quenched lattice QCD
Guagnelli, M
Heitger, J
Pena, C
Sint, S
Vladikas, A
JOURNAL OF HIGH ENERGY PHYSICS, 2006, (03):
[9] Non-perturbative renormalization of static-light four-fermion operators in quenched lattice QCD
Palombi, Filippo
Papinutto, Mauro
Pena, Carlos
Wittig, Hartmut
JOURNAL OF HIGH ENERGY PHYSICS, 2007, (09):
[10] Eigenvalues of the QCD Dirac matrix with improved staggered quarks in the continuum limit
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PHYSICAL REVIEW D, 2023, 108 (09)

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