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Title: Improved nonrelativistic QCD for heavy-quark physics

Abstract

We construct an improved version of nonrelativistic QCD for use in lattice simulations of heavy-quark physics, with the goal of reducing systematic errors from all sources to below 10%. We develop power-counting rules to assess the importance of the various operators in the action and compute all leading-order corrections required by relativity and finite lattice spacing. We discuss radiative corrections to tree-level coupling constants, presenting a procedure that effectively resums the largest such corrections to all orders in perturbation theory. Finally, we comment on the site of nonperturbative contributions to the coupling constants.

Authors:
; ;  [1];  [2];  [3]
  1. (Newman Laboratory of Nuclear Studies, Cornell University, Ithaca, New York 14853 (United States))
  2. (State University of New York at Stony Brook, Stony Brook, New York 11794 (United States))
  3. (The Ohio State University, Columbus, Ohio 43210 (United States))
Publication Date:
OSTI Identifier:
7073247
Alternate Identifier(s):
OSTI ID: 7073247
Resource Type:
Journal Article
Journal Name:
Physical Review, D (Particles Fields); (United States)
Additional Journal Information:
Journal Volume: 46:9; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; LATTICE FIELD THEORY; QUANTUM CHROMODYNAMICS; QUARKS; B MESONS; BOUND STATE; COUPLING CONSTANTS; D MESONS; MASS; MEAN-FIELD THEORY; PERTURBATION THEORY; QUARKONIUM; RADIATIVE CORRECTIONS; SCHROEDINGER EQUATION; SIMULATION; ULTRAVIOLET DIVERGENCES; BEAUTY PARTICLES; BOSONS; CHARM PARTICLES; CHARMED MESONS; CORRECTIONS; DIFFERENTIAL EQUATIONS; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; FIELD THEORIES; HADRONS; MESONS; PARTIAL DIFFERENTIAL EQUATIONS; POSTULATED PARTICLES; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; WAVE EQUATIONS 662230* -- Quantum Chromodynamics-- (1992-); 662340 -- Hadron Interactions-- (1992-); 662390 -- Electromagnetic Processes & Properties-- (1992-)

Citation Formats

Lepage, G.P., Magnea, L., Nakhleh, C., Magnea, U., and Hornbostel, K.. Improved nonrelativistic QCD for heavy-quark physics. United States: N. p., 1992. Web. doi:10.1103/PhysRevD.46.4052.
Lepage, G.P., Magnea, L., Nakhleh, C., Magnea, U., & Hornbostel, K.. Improved nonrelativistic QCD for heavy-quark physics. United States. doi:10.1103/PhysRevD.46.4052.
Lepage, G.P., Magnea, L., Nakhleh, C., Magnea, U., and Hornbostel, K.. Sun . "Improved nonrelativistic QCD for heavy-quark physics". United States. doi:10.1103/PhysRevD.46.4052.
@article{osti_7073247,
title = {Improved nonrelativistic QCD for heavy-quark physics},
author = {Lepage, G.P. and Magnea, L. and Nakhleh, C. and Magnea, U. and Hornbostel, K.},
abstractNote = {We construct an improved version of nonrelativistic QCD for use in lattice simulations of heavy-quark physics, with the goal of reducing systematic errors from all sources to below 10%. We develop power-counting rules to assess the importance of the various operators in the action and compute all leading-order corrections required by relativity and finite lattice spacing. We discuss radiative corrections to tree-level coupling constants, presenting a procedure that effectively resums the largest such corrections to all orders in perturbation theory. Finally, we comment on the site of nonperturbative contributions to the coupling constants.},
doi = {10.1103/PhysRevD.46.4052},
journal = {Physical Review, D (Particles Fields); (United States)},
issn = {0556-2821},
number = ,
volume = 46:9,
place = {United States},
year = {1992},
month = {11}
}