Light pseudoscalar mesons in a nonlocal three flavor chiral quark model

Journal Article · Thu Dec 02 00:00:00 EST 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1843616· OSTI ID:20630351

Gomez Dumm, D ^[1]; Scarpettini, A ^[2]; Scoccola, N N ^[1]

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1. IFLP, Depto. de Fisica, Univ. Nac. de La Plata, C.C. 67, 1900 La Plata (Argentina)
2. Physics Department, CNEA, Av. Libertador 8250, 1429 Buenos Aires (Argentina)

We study the properties of light pseudoscalar mesons in a three flavor chiral quark model with nonlocal separable interactions. We consider the case of a Gaussian regulator, evaluating meson masses and decay constants. Our results are found to be in good agreement with empirical values, in particular, in the case of the ratio f{kappa}/f{pi} and the decay {pi}0 {yields} {gamma}{gamma}. The model leads also to a reasonable description of the observed phenomenology in the {eta} - {eta}' sector, where two significantly different mixing angles are required. Detailed description of the work sketched here can be found elsewhere.

• OSTI ID: 20630351
• Journal Information: AIP Conference Proceedings, Vol. 739, Issue 1; Conference: Joint meeting on QCD and QCP: 9. hadron physics and 7. relativistic aspects of nuclear physics, Rio de Janeiro (Brazil), 28 Mar - 3 Apr 2004; Other Information: DOI: 10.1063/1.1843616; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRALITY
ETA MESONS
ETA PRIME-958 MESONS
FLAVOR MODEL
MESON-MESON INTERACTIONS
PARTICLE DECAY
PHOTONS
PIONS
REST MASS
WEINBERG ANGLE