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Proton emission off nuclei induced by kaons in flight

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dc.creator Magas, Volodymyr
dc.creator Yamagata-Sekihara, J.
dc.creator Hirenzaki, S.
dc.creator Oset Baguena, Eulogio
dc.creator Ramos Gómez, Àngels
dc.date 2011-01-13T13:26:11Z
dc.date 2011-01-13T13:26:11Z
dc.date 2010-02-24
dc.date.accessioned 2024-12-16T10:25:49Z
dc.date.available 2024-12-16T10:25:49Z
dc.identifier 1089-490X
dc.identifier http://hdl.handle.net/2445/15265
dc.identifier 577070
dc.identifier.uri http://fima-docencia.ub.edu:8080/xmlui/handle/123456789/20083
dc.description We study the (K-, p) reaction on nuclei with a 1 GeV/c momentum kaon beam, paying special attention to the region of emitted protons having kinetic energy above 600 MeV, which was used to claim a deeply attractive kaon nucleus optical potential. Our model describes the nuclear reaction in the framework of a local density approach and the calculations are performed following two different procedures: one is based on a many-body method using the Lindhard function and the other is based on a Monte Carlo simulation. The simulation method offers flexibility to account for processes other than kaon quasielastic scattering, such as K- absorption by one and two nucleons, producing hyperons, and allows consideration of final-state interactions of the K-, the p, and all other primary and secondary particles on their way out of the nucleus, as well as the weak decay of the produced hyperons into pi N. We find a limited sensitivity of the cross section to the strength of the kaon optical potential. We also show a serious drawback in the experimental setup-the requirement for having, together with the energetic proton, at least one charged particle detected in the decay counter surrounding the target-as we find that the shape of the original cross section is appreciably distorted, to the point of invalidating the claims made in the experimental paper on the strength of the kaon nucleus optical.
dc.format 10 p.
dc.format application/pdf
dc.language eng
dc.publisher American Physical Society
dc.relation info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevC.81.024609
dc.relation Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevC.81.024609
dc.relation Physical Review C, 2010, vol. 81, núm. 2, p. 024609-1-024609-10
dc.relation http://dx.doi.org/10.1103/PhysRevC.81.024609
dc.relation info:eu-repo/grantAgreement/EC/FP7/227431/EU//HADRONPHYSICS2
dc.rights (c) American Physical Society, 2010
dc.rights info:eu-repo/semantics/openAccess
dc.source Articles publicats en revistes (Física Quàntica i Astrofísica)
dc.subject Fenomenologia (Física)
dc.subject Reaccions nuclears
dc.subject Specific reactions and phenomenology
dc.subject Nuclear reactions
dc.title Proton emission off nuclei induced by kaons in flight
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/publishedVersion


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