Vector meson-vector meson interaction in a hidden gauge unitary approach

Journal Article · Wed Apr 01 04:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.79.074009· OSTI ID:21308163

Geng, L S; Oset, E ^[1]

---

1. Departamento de Fisica Teorica and IFIC, Universidad de Valencia-CSIC, E-46071 Valencia (Spain)

The formalism developed recently to study vector meson-vector meson interaction, and applied to the case of {rho}{rho}, is extended to study the interaction of the nonet of vector mesons among themselves. The interaction leads to poles of the scattering matrix corresponding to bound states or resonances. We show that 11 states (either bound or resonant) get dynamically generated in nine strangeness-isospin-spin channels. Five of them can be identified with those reported in the PDG, i.e., the f{sub 0}(1370), f{sub 0}(1710), f{sub 2}(1270), f{sub 2}{sup '}(1525), and K{sub 2}*(1430). The masses of the latter three tensor states have been used to fine-tune the free parameters of the unitary approach, i.e., the subtraction constants in evaluating the vector meson-vector meson loop functions in the dimensional regularization scheme. The branching ratios of these five dynamically generated states are found to be consistent with data. The existence of the other six states should be taken as predictions to be tested by future experiments.

• OSTI ID: 21308163
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOUND STATE
BRANCHING RATIO
F2 PRIME-1525 MESONS
F2-1270 MESONS
FORECASTING
INTERACTIONS
ISOSPIN
MASS
RESONANCE
SCATTERING
SPIN
STRANGENESS
VECTOR MESONS