skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Doubly heavy baryons and quark-diquark symmetry in quenched and partially quenched chiral perturbation theory

Abstract

We extend the chiral Lagrangian with heavy quark-diquark symmetry to quenched and partially quenched theories. These theories are used to derive formulas for the chiral extrapolation of masses and hyperfine splittings of double heavy baryons in lattice QCD simulations. A quark-diquark symmetry prediction for the hyperfine splittings of heavy mesons and doubly heavy baryons is rather insensitive to chiral corrections in both quenched and partially quenched QCD. Extrapolation formulas for the doubly heavy baryon electromagnetic transition moments are also determined for the partially quenched theory.

Authors:
 [1];  [1]
  1. Department of Physics, Duke University, Durham, North Carolina 27708 (United States)
Publication Date:
OSTI Identifier:
20871130
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 74; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevD.74.054505; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B QUARKS; BARYONS; C QUARKS; CHIRALITY; COMPUTERIZED SIMULATION; CORRECTIONS; ENERGY-LEVEL TRANSITIONS; EXTRAPOLATION; LAGRANGIAN FUNCTION; LATTICE FIELD THEORY; MESONS; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; REST MASS; SYMMETRY; T QUARKS

Citation Formats

Mehen, Thomas, Jefferson Laboratory, 12000 Jefferson Ave., Newport News, Virginia 23606, and Tiburzi, Brian C. Doubly heavy baryons and quark-diquark symmetry in quenched and partially quenched chiral perturbation theory. United States: N. p., 2006. Web. doi:10.1103/PHYSREVD.74.054505.
Mehen, Thomas, Jefferson Laboratory, 12000 Jefferson Ave., Newport News, Virginia 23606, & Tiburzi, Brian C. Doubly heavy baryons and quark-diquark symmetry in quenched and partially quenched chiral perturbation theory. United States. doi:10.1103/PHYSREVD.74.054505.
Mehen, Thomas, Jefferson Laboratory, 12000 Jefferson Ave., Newport News, Virginia 23606, and Tiburzi, Brian C. Fri . "Doubly heavy baryons and quark-diquark symmetry in quenched and partially quenched chiral perturbation theory". United States. doi:10.1103/PHYSREVD.74.054505.
@article{osti_20871130,
title = {Doubly heavy baryons and quark-diquark symmetry in quenched and partially quenched chiral perturbation theory},
author = {Mehen, Thomas and Jefferson Laboratory, 12000 Jefferson Ave., Newport News, Virginia 23606 and Tiburzi, Brian C},
abstractNote = {We extend the chiral Lagrangian with heavy quark-diquark symmetry to quenched and partially quenched theories. These theories are used to derive formulas for the chiral extrapolation of masses and hyperfine splittings of double heavy baryons in lattice QCD simulations. A quark-diquark symmetry prediction for the hyperfine splittings of heavy mesons and doubly heavy baryons is rather insensitive to chiral corrections in both quenched and partially quenched QCD. Extrapolation formulas for the doubly heavy baryon electromagnetic transition moments are also determined for the partially quenched theory.},
doi = {10.1103/PHYSREVD.74.054505},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 5,
volume = 74,
place = {United States},
year = {2006},
month = {9}
}