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dc.contributor.authorRamos, Àngelses_ES
dc.contributor.authorOset, Eulogies_ES
dc.date.accessioned2015-12-16T08:40:47Z-
dc.date.available2015-12-16T08:40:47Z-
dc.date.issued2013-11-
dc.identifier.citationPhysics Letters - Section B 727 (1-3): 287-292 (2013)es_ES
dc.identifier.issn0370-2693-
dc.identifier.urihttp://hdl.handle.net/10261/126949-
dc.description.abstractWe have studied the gamma p -> K-0 Sigma(+) reaction in the energy region around the K*Lambda and K*Sigma thresholds, where the CBELSA/TAPS cross section shows a sudden drop and the differential cross section experiences a transition from a forward-peaked distribution to a flat one. Our coupled-channel model incorporates the dynamics of the vector meson-baryon interaction which is obtained from the hidden gauge formalism. We find that the cross section in this energy region results from a delicate interference between amplitudes having K*Lambda and K*Sigma intermediate states. The sharp downfall is dictated by the presence of a nearby N* resonance produced by our model, a feature that we have employed to predict its properties. We also show results for the complementary gamma n -> K-0 Sigma(0) reaction, the measurement of which would test the mechanism proposed in this work.es_ES
dc.description.sponsorshipThis work is partly supported by the Spanish Ministerio de Economia y Competitividad and European FEDER funds under the contract numbers FIS2011-28853-C02-01 and FIS2011-24154, by the Generalitat Valenciana in the program Prometeo 2009/090, and by Grant No. 2009SGR-1289 from the Generalitat de Catalunya. We also acknowledge the support of the Consolider Ingenio 2010 Programme CPAN CSD2007-00042 and of the European Community - Research Infrastructure Integrating Activity Study of Strongly Interacting Matter (acronym HadronPhysics3, Grant Agreement No. 283286) under the Seventh Framework Programme of EU.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relation.isversionofPreprintes_ES
dc.rightsopenAccesses_ES
dc.subjectPhotoproductiones_ES
dc.titleThe role of vector-baryon channels and resonances in the gamma p -> K-0 Sigma(+) and gamma n -> K-0 Sigma(0) reactions near the K*Lambda thresholdes_ES
dc.typeartículoes_ES
dc.identifier.doi10.1016/j.physletb.2013.10.012-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.physletb.2013.10.012es_ES
dc.identifier.e-issn1873-2445-
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderGeneralitat Valencianaes_ES
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderGeneralitat de Catalunyaes_ES
dc.contributor.funderCentro Nacional de Física de Partículas, Astropartículas y Nuclear (España)es_ES
dc.relation.csices_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003359es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100002809es_ES
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