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Predictions for the Lambda(b) -> J/psi Lambda (1405) decay

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Predictions for the Lambda(b) -> J/psi Lambda (1405) decay

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dc.contributor.author Roca Zamora, Luis
dc.contributor.author Mai, Maxim
dc.contributor.author Oset Báguena, Eulogio
dc.contributor.author Meissner, Ulf-G.
dc.date.accessioned 2016-11-16T10:35:25Z
dc.date.available 2016-11-16T10:35:25Z
dc.date.issued 2015
dc.identifier.citation Roca Zamora, Luis Mai, Maxim Oset Báguena, Eulogio Meissner, Ulf-G. 2015 Predictions for the Lambda(b) -> J/psi Lambda (1405) decay European Physical Journal C 75 5 218
dc.identifier.uri http://hdl.handle.net/10550/55964
dc.description.abstract We calculate the shape of the pi Sigma and (K) over bar N invariant mass distributions in the Lambda(b) -> J/psi pi Sigma and Lambda(b) -> J/psi (K) over bar N decays that are dominated by the Lambda (1405) resonance. The weak interaction part is the same for both processes and the hadronization into the different meson-baryon channels in the final state is given by symmetry arguments. The most important feature is the implementation of the meson-baryon final-state interaction using two chiral unitary models from different theoretical groups. Both approaches give a good description of antikaon-nucleon scattering data, the complex energy shift in kaonic hydrogen and the line shapes of pi Sigma K in photoproduction, based on the two-pole scenario for the Lambda (1405). We find that this reaction reflects more the higher mass pole and we make predictions of the line shapes and relative strength of the meson-baryon distributions in the final state.
dc.language.iso eng
dc.relation.ispartof European Physical Journal C, 2015, vol. 75, num. 5, p. 218
dc.subject Física
dc.title Predictions for the Lambda(b) -> J/psi Lambda (1405) decay
dc.type journal article es_ES
dc.date.updated 2016-11-16T10:35:26Z
dc.identifier.doi 10.1140/epjc/s10052-015-3438-1
dc.identifier.idgrec 108233
dc.rights.accessRights open access es_ES

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