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Isospin 0 and 1 resonances from pi Sigma photoproduction data
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Isospin 0 and 1 resonances from pi Sigma photoproduction data
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| dc.contributor.author | Roca Zamora, Luis | |
| dc.contributor.author | Oset Báguena, Eulogio | |
| dc.date.accessioned | 2014-02-17T13:22:43Z | |
| dc.date.available | 2014-02-17T13:22:43Z | |
| dc.date.issued | 2013 | |
| dc.identifier.citation | Roca, L. Oset Báguena, Eulogio 2013 Isospin 0 and 1 resonances from pi Sigma photoproduction data Physical Review C 88 5 055206 | |
| dc.identifier.uri | http://hdl.handle.net/10550/32987 | |
| dc.description.abstract | Recently we presented a successful strategy to extract the position of the two Lambda ( 1405) poles from experimental photoproduction data on the gamma p -> K+pi(0)Sigma(0) reaction at Jefferson Lab. Following a similar strategy, we extend the previous method to incorporate also the isospin 1 component which allows us to consider in addition the experimental data on gamma p -> K+pi(+/-)Sigma(-/+). The idea is based on considering a production mechanism as model independent as possible and implementing the final state interaction of the final meson-baryon pair based on small modifications of the unitary chiral perturbation theory amplitudes. Good fits to the data are obtained with this procedure, by means of which we can also predict the cross sections for the K- p -> (K) over barN, pi Sigma, and pi Lambda reactions for the different charge channels. Besides the two poles found for the Lambda(1405) resonance, we discuss the possible existence of an isospin 1 resonance in the vicinity of the (K) over barN threshold. | |
| dc.relation.ispartof | Physical Review C, 2013, vol. 88, num. 5, p. 055206 | |
| dc.subject | Física | |
| dc.title | Isospin 0 and 1 resonances from pi Sigma photoproduction data | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2014-02-17T13:22:43Z | |
| dc.identifier.doi | 10.1103/PhysRevC.88.055206 | |
| dc.identifier.idgrec | 093164 | |
| dc.rights.accessRights | open access | es_ES |
| dc.identifier.url | 10.1103/PhysRevC.88.055206 |
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