Off-shell [rho]-[omega] mixing in QCD sum rules

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.452· OSTI ID:5408299

Hatsuda, T; Henley, E M; Meissner, T; Krein, G ^[1]

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1. Physics Department, FM-15, University of Washington, Seattle, Washington 98195 (United States) Institute for Nuclear Theory, HN-12 University of Washington, Seattle, Washington 98195 (United States) Instituto de Fisica Teorica, Rua Pamplona, 145, 01405-900 Sao Paulo-SP (Brazil)

The [ital q][sup 2] dependence of the [rho]-[omega] mixing amplitude is analyzed with the use of QCD sum rules and dispersion relations. Going off shell the mixing decreases, changes sign at [ital q][sup 2][congruent]0.4[ital m][sub [rho]][sup 2][gt]0, and is negative in the spacelike region. Implications of this result for the isospin breaking part of the nuclear force are discussed.

• OSTI ID: 5408299
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:1; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

662230 -- Quantum Chromodynamics-- (1992-)
663110* -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BASIC INTERACTIONS
BOSONS
CHARGE INDEPENDENCE
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
EQUATIONS
FIELD THEORIES
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
INVARIANCE PRINCIPLES
MASS DIFFERENCE
MESON-MESON INTERACTIONS
MESONS
MIXING
OMEGA-783 MESONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
RHO-770 MESONS
SUM RULES
SYMMETRY BREAKING
VECTOR MESONS