{rho}-{omega} splitting and mixing in nuclear matter
Journal Article
·
· Physical Review. C, Nuclear Physics
- Forschungszentrum Rossendorf, PF 510119, 01314 Dresden (Germany)
We investigate the splitting and mixing of {rho} and {omega} mesons in nuclear matter. The calculations were performed on the basis of QCD sum rules and include all operators up to mass dimension-6 twist-4 and up to first order in the coupling constants. Special attention is devoted to the impact of the scalar four-quark condensates on both effects. In nuclear matter the Landau damping governs the {rho}-{omega} mass splitting while the scalar four-quark condensates govern the strength of individual mass shifts. A strong in-medium mass splitting causes the disappearance of the {rho}-{omega} mixing.
- OSTI ID:
- 20695545
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 70, Issue 3; Other Information: DOI: 10.1103/PhysRevC.70.035207; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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