Published January 2006 | Version v1
Journal article Metadata-only

The effect of sea quarks on the mass of the charm quark from lattice QCD

Creators

  • 1. Department of Physics and Astronomy, University of Glasgow, Glasgow, G12 8QQ (United Kingdom)
  • 2. School of Physics, JCMB, Kings Buildings, University of Edinburgh, Edinburgh, EH9 3JZ (United Kingdom)
  • 3. Theoretical Physics Division, Dept. of Mathematical Sciences, University of Liverpool, Liverpool L69 3BX (United Kingdom)

Description

We compute the mass of the charm quark using both quenched and dynamical lattice QCD calculations. We examine the effects of mass dependent lattice artifacts by comparing two different formalisms for the heavy quarks. We take the continuum limit of the charm mass in quenched QCD by extrapolating from three different lattice spacings. At a fixed lattice spacing, the mass of the charm quark is compared between quenched QCD and dynamical QCD with a sea quark mass around strange. In the continuum limit of quenched QCD, we find mc(mc) = 1.29(7)(13) GeV. No evidence was seen for unquenching

Availability note (English)

Available online at http://stacks.iop.org/1126-6708/2006/i=01/a=171/jhep012006171.pdf or at the Web site for the Journal of High Energy Physics (ISSN 1029-8479) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/1126-6708/2006/i=01/a=171/jhep012006171.pdf;
DOI
10.1088/1126-6708/2006/01/171;

Publishing Information

Journal Title
Journal of High Energy Physics
Journal Volume
2006
Journal Issue
01
Journal Page Range
p. 171
ISSN
1126-6708

INIS

Country of Publication
Italy
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37051616
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
B QUARKS; C QUARKS; GEV RANGE; LATTICE FIELD THEORY; QUANTUM CHROMODYNAMICS; REST MASS; T QUARKS
Descriptors DEC
BEAUTY PARTICLES; CHARM PARTICLES; CONSTRUCTIVE FIELD THEORY; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FIELD THEORIES; MASS; POSTULATED PARTICLES; QUANTUM FIELD THEORY; QUARKS; TOP PARTICLES

Optional Information

Collaborations
UKQCD Collaboration