The off shell [rho][endash][omega] mixing in the QCD sum rules

Technical Report · Fri Jan 01 04:00:00 EST 1993

OSTI ID:7368526

Hatsuda, T ^[1]; Henley, E M ^[2]; Meissner, T ^[3]; Krein, G ^[4]

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1. Washington Univ., Seattle, WA (United States). Dept. of Physics
2. Washington Univ., Seattle, WA (United States). Dept. of Physics Washington Univ., Seattle, WA (United States). Inst. for Nuclear Theory
3. Washington Univ., Seattle, WA (United States). Inst. for Nuclear Theory
4. Instituto de Fisica Teorica (IFT), Sao Paulo, SP (Brazil)

The q[sup 2] dependence of the [rho] - [omega] mixing amplitude is analyzed with the use of the QCD sum rules and the dispersion relation. In going off shell the mixing decreases, changes sign at q[sup 2] [approx equal] 0.4 m[sub [rho]][sup 2] > 0, and is negative in the space-like region. Implications of this result to the isospin breaking part of the nuclear force are discussed.

• Research Organization: Washington Univ., Seattle, WA (United States). Dept. of Physics
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG06-88ER40427; FG06-90ER40561
• OSTI ID: 7368526
• Report Number(s): DOE/ER/40427-09-N93; DOE/ER/40561--103; ON: DE93014845
• 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
BOSONS
CHARGE INDEPENDENCE
ELEMENTARY PARTICLES
EQUATIONS
FIELD THEORIES
HADRONS
INVARIANCE PRINCIPLES
MESONS
MIXING RATIO
NUCLEAR FORCES
NUCLEON-NUCLEON POTENTIAL
OMEGA-783 MESONS
POTENTIALS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
RHO-770 MESONS
SUM RULES
SYMMETRY BREAKING
VECTOR MESONS