Published November 1997
| Version v1
Journal article
Chiral Sum Rules to Second Order in Quark Mass
Creators
- 1. Department of Physics and Astronomy, University of Massachusetts, Amherst, Massachusetts 01003 (United States)
- 2. Institut fuer Theoretische Physik, Universitaet Zuerich, CH-8057 Zuerich (Switzerland)
Description
A new calculation of the isospin and hypercharge axial-vector current propagators [ΔμνA33( q2) and ΔμνA88( q2) ] to two loops in SU(3)xSU(3) chiral perturbation theory is used to derive chiral spectral function sum rules valid to second order in the light quark masses. Explicit forms are given for the three-pion isospin axial-vector spectral functions at low energy, and application of the sum rules to the determination of counterterms of the chiral Lagrangian is discussed. copyright 1997 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 79
- Journal Issue
- 21
- Journal Page Range
- p. 4092-4095.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 29020813
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- AXIAL-VECTOR CURRENTS; CHIRAL SYMMETRY; HYPERCHARGE; ISOSPIN; LAGRANGIAN FUNCTION; MASS; PERTURBATION THEORY; PROPAGATOR; QUANTUM CHROMODYNAMICS; QUARKS; SPECTRAL FUNCTIONS; SU-3 GROUPS; SUM RULES
- Descriptors DEC
- ALGEBRAIC CURRENTS; CURRENTS; EQUATIONS; FERMIONS; FIELD THEORIES; FUNCTIONS; LIE GROUPS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; SU GROUPS; SYMMETRY; SYMMETRY GROUPS