Weinberg-type sum rules at zero and finite temperature
Journal Article
·
· Physical Review, D (Particles Fields); (United States)
- Institute for Theoretical Physics, University of California, Santa Barbara, California 93106 (United States)
We consider sum rules of the Weinberg type at zero and nonzero temperatures. On the basis of the operator product expansion at zero temperature we obtain a new sum rule which involves the average of a four-quark operator on one side and experimentally measured spectral densities on the other. We further generalize the sum rules to finite temperature. These involve transverse and longitudinal spectral densities at each value of the momentum. Various scenarios for the relation between chiral symmetry restoration and these finite temperature sum rules are discussed.
- DOE Contract Number:
- FG02-88ER40388; FG02-93ER40768
- OSTI ID:
- 5010676
- Journal Information:
- Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:9; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662130* -- General Theory of Particles & Fields-- S-Matrix Theory
Relativistic Scattering Theory-- (1992-)
662230 -- Quantum Chromodynamics-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
EQUATIONS
FIELD THEORIES
FUNCTIONS
OPERATOR PRODUCT EXPANSION
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
SERIES EXPANSION
SPECTRAL DENSITY
SPECTRAL FUNCTIONS
SUM RULES
SYMMETRY
TEMPERATURE DEPENDENCE
Conservation Laws
Currents & Their Properties-- (1992-)
662130* -- General Theory of Particles & Fields-- S-Matrix Theory
Relativistic Scattering Theory-- (1992-)
662230 -- Quantum Chromodynamics-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
EQUATIONS
FIELD THEORIES
FUNCTIONS
OPERATOR PRODUCT EXPANSION
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
SERIES EXPANSION
SPECTRAL DENSITY
SPECTRAL FUNCTIONS
SUM RULES
SYMMETRY
TEMPERATURE DEPENDENCE