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Chiral coupled channel dynamics of the Lambda(1520) and the K(-)p ->pi(0)pi(0)Lambda reaction

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Chiral coupled channel dynamics of the Lambda(1520) and the K(-)p ->pi(0)pi(0)Lambda reaction

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dc.contributor.author Sarkar, S.
dc.contributor.author Oset Báguena, Eulogio
dc.contributor.author Vicente Vacas, Manuel José
dc.date.accessioned 2014-10-29T08:45:12Z
dc.date.available 2014-10-29T08:45:12Z
dc.date.issued 2005
dc.identifier.citation Sarkar, S. Oset Báguena, Eulogio Vicente Vacas, Manuel José 2005 Chiral coupled channel dynamics of the Lambda(1520) and the K(-)p ->pi(0)pi(0)Lambda reaction Physical Review C 72 015206-1 015206-11
dc.identifier.uri http://hdl.handle.net/10550/39465
dc.description.abstract We study the Lambda(1520)D-03 in a chiral coupled channel approach. This resonance appears to be dynamically generated from the interaction of the decuplet of baryons and the octet of mesons in s wave, and its treatment is improved here with the phenomenological inclusion of the KN and pi Sigma channels in d wave. Since the most important building block in Lambda(1520) is the pi Sigma(*)(1385)P-13 channel, we study the K(-)p ->pi Sigma(*)(1385)(pi(0)Lambda) reaction in the region of Lambda(1520) and above, and compare the results with recent experimental data. With the coupling of Lambda(1520) to the pi Sigma(*) channel predicted by the theory, we find a cross section in good agreement with the data. There is also agreement for the invariant mass distributions which show a neat peak for Sigma(*)(1385) in the (pi(0)Lambda) spectrum. Predictions are made of a strong Lambda(1520) resonant peak of the cross section, as a function of the K- momentum, in the region below the measured data, which, if confirmed experimentally, would give stronger support to the idea of Lambda(1520) as a dynamically generated resonance.
dc.language.iso eng
dc.relation.ispartof Physical Review C, 2005, vol. 72, p. 015206-1-015206-11
dc.subject Física
dc.title Chiral coupled channel dynamics of the Lambda(1520) and the K(-)p ->pi(0)pi(0)Lambda reaction
dc.type journal article es_ES
dc.date.updated 2014-10-29T08:45:12Z
dc.identifier.doi 10.1103/PhysRevC.72.015206
dc.identifier.idgrec 025698
dc.rights.accessRights open access es_ES

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