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

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

Christopher Monahan
(
- William-Mary Coll.
)
,
Junko Shigemitsu
(
- Ohio State U.
)
,
Ron Horgan
(
- Cambridge U., DAMTP
)

Nov, 2012

16 pages

Published in:

Phys.Rev.D 87 (2013) 3, 034017

Published: Feb 11, 2013

e-Print:

1211.6966 [hep-lat]

DOI:

10.1103/PhysRevD.87.034017

View in:

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Abstract: (APS)

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.

Note:

17 pages, 3 figures. References updated, minor typos corrected and data added to Tables V, VI and VII. Version to appear in Phys. Rev. D

12.38.Gc
13.20.Gd
12.38.Bx
13.20.He
quantum chromodynamics: nonrelativistic
quark: staggered
perturbation theory
renormalization
heavy quark
current: vector

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Figures(4)

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