{rho}{rho} interaction in the hidden gauge formalism and the f{sub 0}(1370) and f{sub 2}(1270) resonances
Journal Article
·
· Physical Review. D, Particles Fields
- Departamento de Fisica Teorica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigacion de Paterna, Apartado 22085, 46071 Valencia (Spain)
- Fachbereich Theoretische Physik, Institut fuer Physik, Karl-Franzens-Universitaet Graz, Universitaetsplatz 5, A-8010 Graz (Austria)
We have studied the interaction of vector mesons within the hidden gauge formalism and applied it to the particular case of the {rho}{rho} interaction. We find a strong attraction in the isospin, spin channels I, S=0, 0 and 0, 2, which is enough to bind the {rho}{rho} system. We also find that the attraction in the I, S=0, 2 channel is much stronger than in the 0, 0 case. The states develop a width when the {rho} mass distribution is considered, and particularly when the {pi}{pi} decay channel is turned on. Using a regularization scheme with cutoffs of natural size, we obtain results in fair agreement with the mass and the width of the f{sub 0}(1370) and f{sub 2}(1270) meson states, providing a natural explanation of why the tensor state is more bound than the scalar and offering a new picture for these states, which would be dynamically generated from the {rho}{rho} interaction or, in simpler words, {rho}{rho} molecular states.
- OSTI ID:
- 21251006
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 78; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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