Repositorio de producción científica de la Universidad de Sevilla

Observation and spectroscopy of new proton-unbound isotopes 30ar and 29cl: an interplay of prompt two-proton and sequential decay

 

Advanced Search
 

Show simple item record

dc.creator Espino Navas, José Manuel es
dc.creator Mukha, I. es
dc.creator Grigorenko, L. es
dc.creator Xu, X. es
dc.creator Acosta, L. es
dc.creator Casarejos, E. es
dc.creator Ciemny, A. A. es
dc.creator Dominik, W. es
dc.date.accessioned 2017-07-13T14:49:59Z
dc.date.available 2017-07-13T14:49:59Z
dc.date.issued 2015-11-09
dc.identifier.citation Espino Navas, J.M., Mukha, I., Grigorenko, L., Xu, X., Acosta, L., Casarejos, E.,...,Dominik, W. (2015). Observation and spectroscopy of new proton-unbound isotopes 30ar and 29cl: an interplay of prompt two-proton and sequential decay. Physical Review Letters, 115 (20), 202501-1-202501-7.
dc.identifier.issn 0031-9007 (impreso) es
dc.identifier.issn 1079-7114 (electrónico) es
dc.identifier.uri http://hdl.handle.net/11441/62492
dc.description.abstract Previously unknown isotopes 30Ar and 29Cl have been identified by measurement of the trajectories of their in-flight decay products 28S+p+p and 28S+p, respectively. The analysis of angular correlations of the fragments provided information on decay energies and the structure of the parent states. The ground states of 30Ar and 29Cl were found at 2.25+0.15−0.10 and 1.8±0.1  MeV above the two- and one-proton thresholds, respectively. The lowest states in 30Ar and 29Cl point to a violation of isobaric symmetry in the structure of these unbound nuclei. The two-proton decay has been identified in a transition region between simultaneous two-proton and sequential proton emissions from the 30Ar ground state, which is characterized by an interplay of three-body and two-body decay mechanisms. The first hint of a fine structure of the two-proton decay of 30Ar∗(2+) has been obtained by detecting two decay branches into the ground and first-excited states of the 28S fragment. es
dc.description.sponsorship Polish National Science Center UMO-2011/01/B/ST2/01943 es
dc.format application/pdf es
dc.language.iso eng es
dc.publisher American Physical Society es
dc.relation.ispartof Physical Review Letters, 115 (20), 202501-1-202501-7.
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 Internacional *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.title Observation and spectroscopy of new proton-unbound isotopes 30ar and 29cl: an interplay of prompt two-proton and sequential decay es
dc.type info:eu-repo/semantics/article es
dc.type.version info:eu-repo/semantics/publishedVersion es
dc.rights.accessrights info:eu-repo/semantics/openAccess es
dc.contributor.affiliation Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear es
dc.relation.projectID UMO-2011/01/B/ST2/01943 es
dc.relation.publisherversion https://doi.org/10.1103/PhysRevLett.115.202501 es
dc.identifier.doi 10.1103/PhysRevLett.115.202501 es
idus.format.extent 7 p. es
dc.journaltitle Physical Review Letters es
dc.publication.volumen 115 es
dc.publication.issue 20 es
dc.publication.initialPage 202501-1 es
dc.publication.endPage 202501-7 es
dc.contributor.funder National Science Center. Poland
Size: 871.5Kb
Format: PDF

This item appears in the following Collection(s)

Show simple item record