Radiative improvement of the lattice nonrelativistic QCD action using the background field method with applications to quarkonium spectroscopy

Publication type:
Journal article
Metadata:
Autoren
  • TC Hammant
  • AG Hart
  • GM von Hippel
  • RR Horgan
  • CJ Monahan
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000321715400004&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1103/PhysRevD.88.014505
eISSN
1550-2368
Externe Identifier
  • Clarivate Analytics Document Solution ID: 182BL
ISSN
1550-7998
Ausgabe der Veröffentlichung
1
Zeitschrift
PHYSICAL REVIEW D
Artikelnummer
ARTN 014505
Datum der Veröffentlichung
2013
Status
Published
Titel
Radiative improvement of the lattice nonrelativistic QCD action using the background field method with applications to quarkonium spectroscopy
Sub types
  • Article
Ausgabe der Zeitschrift
88

Data source: Web of Science (Lite)

Other metadata sources:
Autoren
  • TC Hammant
  • AG Hart
  • GM von Hippel
  • RR Horgan
  • CJ Monahan
DOI
10.1103/physrevd.88.014505
eISSN
1550-2368
ISSN
1550-7998
Ausgabe der Veröffentlichung
1
Zeitschrift
Physical Review D
Sprache
en
Artikelnummer
014505
Online publication date
2013
Status
Published online
Herausgeber
American Physical Society (APS)
Herausgeber URL
http://dx.doi.org/10.1103/physrevd.88.014505
Datum der Datenerfassung
2017
Titel
Radiative improvement of the lattice nonrelativistic QCD action using the background field method with applications to quarkonium spectroscopy
Ausgabe der Zeitschrift
88

Data source: Crossref

Abstract
We apply the background field (BF) method to Non-Relativistic QCD (NRQCD) on the lattice in order to determine the one-loop radiative corrections to the coefficients of the NRQCD action in a manifestly gauge-covariant manner by matching the NRQCD prediction for particular on-shell processes with those of relativistic continuum QCD. We explain how the BF method is implemented in automated perturbation theory and discuss the technique for matching the relativistic and non-relativistic theories. We compute the one-loop radiative corrections to the sigma.B and Darwin terms for the NRQCD action currently used in simulations, as well as the one-loop coefficients of the spin-dependent O(alpha^2) four-fermion contact terms. The effect of the corrections on the hyperfine splitting of bottomonium is estimated using earlier simulation results; the corrected lattice prediction is found to be in agreement with experiment. Agreement of the hyperfine splitting of bottomonium and the B-meson system is confirmed by recent simulation studies (Dowdall et al.) which include our NRQCD radiative corrections for the first time.
Autoren
  • TC Hammant
  • AG Hart
  • GM von Hippel
  • RR Horgan
  • CJ Monahan
Autoren-URL
http://arxiv.org/abs/1303.3234v2
Zeitschrift
Phys.Rev. D
Schlüsselwörter
  • hep-lat
  • hep-lat
Notes
LaTeX; 19 pages; 13 figures. some with colour; v2: corrected values of four-fermion coefficients (cf. erratum to appear in PRD), qualitative conclusions unchanged
Paginierung
014505
Datum der Veröffentlichung
2013
Herausgeber URL
http://dx.doi.org/10.1103/PhysRevD.88.014505
Datum der Datenerfassung
2013
Datum, an dem der Datensatz öffentlich gemacht wurde
2013
Titel
Radiative improvement of the lattice NRQCD action using the background field method with applications to quarkonium spectroscopy
Ausgabe der Zeitschrift
88

Files

1303.3234v2.pdf

Data source: arXiv

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