Published March 2005 | Version v1
Journal article Metadata-only

Leptonic decay constants fDs and fD in three flavor lattice QCD

Creators

  • 1. Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510 (United States)
  • 2. Department of Physics, Washington University, St. Louis, MO 63130 (United States)
  • 3. Physics Department, University of Utah, Salt Lake City, UT 84112 (United States)
  • 4. School of Computer Science, DePaul University, Chicago, IL 60604 (United States)
  • 5. Physics Department, University of Illinois, Urbana, IL 61801 (United States)
  • 6. Department of Physics, Indiana University, Bloomington, IN 47405 (United States)
  • 7. Department of Physics, University of Arizona, Tucson, AZ 85721 (United States)
  • 8. American Physical Society, One Research Road, Box 9000, Ridge, NY 11961 (United States)
  • 9. University of the Pacific, Stockton, CA 95211 (United States)
  • 10. Physics Department, Simon Fraser University, Burnaby, BC (Canada)
  • 11. Department of Physics, University of California, Santa Barbara, CA, 93106 (United States)

Description

We determine the leptonic decay constants fDs and fD in three flavor unquenched lattice QCD. We use O(a2)-improved sraggered light quarks and O(a)-improved charm quarks in the Fermilab heavy quark formalism. Our preliminary results, based upon an analysis at a single lattice spacing, are fDs=263-9+5+/-24 MeV and fD=225-13+11+/-21 MeV. In each case, the first reported error is statistical while the second is the combined systematic uncertainty

Additional details

Identifiers

DOI
10.1016/j.nuclphysbps.2004.11.245;
arXiv
arXiv:hep-lat/0410030v1;
PII
S0920-5632(04)00733-9;

Publishing Information

Journal Title
Nuclear Physics. B, Proceedings Supplements
Journal Volume
140
Journal Page Range
p. 443-445
ISSN
0920-5632
CODEN
NPBSE7

Conference

Title
22. international symposium on lattice field theory
Acronym
LATTICE 2004
Dates
21-26 Jun 2004
Place
Batavia, IL (United States)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37102598
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
B QUARKS; C QUARKS; D QUARKS; ERRORS; FERMILAB; FLAVOR MODEL; LATTICE FIELD THEORY; LEPTONIC DECAY; QUANTUM CHROMODYNAMICS; T QUARKS; U QUARKS
Descriptors DEC
BASIC INTERACTIONS; BEAUTY PARTICLES; CHARM PARTICLES; COMPOSITE MODELS; CONSTRUCTIVE FIELD THEORY; DECAY; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; INTERACTIONS; MATHEMATICAL MODELS; NATIONAL ORGANIZATIONS; PARTICLE DECAY; PARTICLE MODELS; POSTULATED PARTICLES; QUANTUM FIELD THEORY; QUARK MODEL; QUARKS; TOP PARTICLES; US DOE; US ORGANIZATIONS; WEAK INTERACTIONS; WEAK PARTICLE DECAY

Optional Information

Copyright
Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.