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Meson-meson interactions in a nonperturbative chiral approach
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Meson-meson interactions in a nonperturbative chiral approach
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| dc.contributor.author | Oller Berber, José Antonio | |
| dc.contributor.author | Oset Báguena, Eulogio | |
| dc.contributor.author | Peláez Sagredo, José Ramón | |
| dc.date.accessioned | 2015-09-04T08:09:09Z | |
| dc.date.available | 2015-09-04T08:09:09Z | |
| dc.date.issued | 1999 | |
| dc.identifier.citation | Oller Berber, José Antonio Oset Báguena, Eulogio Peláez Sagredo, José Ramón 1999 Meson-meson interactions in a nonperturbative chiral approach Physical Review D 59 7 074001 | |
| dc.identifier.uri | http://hdl.handle.net/10550/46836 | |
| dc.description.abstract | A non-perturbative method which combines constraints from chiral symmetry breaking and coupled channel unitarity is used to describe the meson-meson interaction up to about 1.2 GeV. The approach uses the O(p^2) and O(p^4) chiral Lagrangians. The seven free parameters of the O(p^4) Lagrangian are fitted to the data. The results are in good agreement with a vast amount of experimental analyses. The amplitudes develop poles in the complex plane corresponding to the f0, a0, rho, K*, phi, sigma and kappa resonances; the latter two, very broad. The total and partial decay widths of the resonances are also well reproduced. Further extensions and applications of this chiral non-perturbative scheme are also discussed. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physical Review D, 1999, vol. 59, num. 7, p. 074001 | |
| dc.subject | Física | |
| dc.title | Meson-meson interactions in a nonperturbative chiral approach | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2015-09-04T08:09:09Z | |
| dc.identifier.doi | 10.1103/PhysRevD.59.074001 | |
| dc.identifier.idgrec | 079425 | |
| dc.rights.accessRights | open access | es_ES |
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