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 formulae for the chiral extrapolation of masses and hyperfine splittings of doubly 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 formulae for the doubly heavy baryon electromagnetic transition moments are also determined for the partially quenched theory.

Authors:
;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA
Sponsoring Org.:
USDOE - Office of Energy Research (ER)
OSTI Identifier:
890569
Report Number(s):
JLAB-THY-06-531; DOE/ER/40150-4017; hep-lat/0607023
TRN: US0604684
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Journal Article
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BARYONS; ENERGY-LEVEL TRANSITIONS; EXTRAPOLATION; FORECASTING; LAGRANGIAN FUNCTION; MESONS; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; SYMMETRY

Citation Formats

Mehen, Thomas, 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.
Mehen, Thomas, & Tiburzi, Brian C. Doubly heavy baryons and quark-diquark symmetry in quenched and partially quenched chiral perturbation theory. United States.
Mehen, Thomas, and Tiburzi, Brian C. Mon . "Doubly heavy baryons and quark-diquark symmetry in quenched and partially quenched chiral perturbation theory". United States. https://www.osti.gov/servlets/purl/890569.
@article{osti_890569,
title = {Doubly heavy baryons and quark-diquark symmetry in quenched and partially quenched chiral perturbation theory},
author = {Mehen, Thomas 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 formulae for the chiral extrapolation of masses and hyperfine splittings of doubly 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 formulae for the doubly heavy baryon electromagnetic transition moments are also determined for the partially quenched theory.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {7}
}