dc.creator | Guerrero Sánchez, Carlos | es |
dc.creator | Tessler, Moshe | es |
dc.creator | Paul, Michael C. | es |
dc.creator | Lerendegui Marco, Jorge | es |
dc.creator | Heinitz, Stephan | es |
dc.creator | Maugeri, Emilio Andrea | es |
dc.creator | Quesada Molina, José Manuel | es |
dc.creator | Weissman, Leonid | es |
dc.date.accessioned | 2020-05-20T06:27:25Z | |
dc.date.available | 2020-05-20T06:27:25Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Guerrero Sánchez, C., Tessler, M., Paul, M.C., Lerendegui Marco, J., Heinitz, S., Maugeri, E.A.,...,Weissman, L. (2019). The s-process in the Nd-Pm-Sm region: Neutron activation of 147Pm. Physics Letters B, 797. | |
dc.identifier.issn | 0370-2693 (impreso) | es |
dc.identifier.issn | 1873-2445 (electrónico) | es |
dc.identifier.uri | https://hdl.handle.net/11441/96961 | |
dc.description.abstract | The Nd-Pm-Sm branching is of interest for the study of the s-process, related to the production of heavy elements in stars. As 148Sm and 150Sm are s-only isotopes, the understanding of the branching allows constraining the s-process neutron density. In this context the key physics input needed is the cross section of the three unstable nuclides in the region: 147Nd (10.98 d half-life), 147Pm (2.62 yr) and 148Pm (5.37 d). This paper reports on the activation measurement of 147Pm, the longest-lived of the three nuclides. The cross section measurement has been carried out by activation at the SARAF LiLiT facility using a 56(2) μg target. Compared to the single previous measurement of 147Pm, the measurement presented herein benefits from a target 2000 times more massive. The resulting Maxwellian Averaged Cross Section (MACS) to the ground and metastable states in 148Pm are 469(50) mb and 357(27) mb. These values are 41% higher (to the ground state) and 15% lower (to the metastable state) than the values reported so far, leading however to a total cross section of 826(107) mb consistent within uncertainties with the previous result and hence leaving unchanged the previous calculation of the s-process neutron density. | es |
dc.description.sponsorship | University of Seville [FPA2013-45083P, FPA2014-53290-C2-2-P, FPA2016-77689-C2-1-R] | es |
dc.description.sponsorship | EC FP7 projects NeutAndalus [334315] | es |
dc.description.sponsorship | CHANDA [605203] | es |
dc.format | application/pdf | es |
dc.format.extent | 6 p. | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier: SCOAP3 | es |
dc.relation.ispartof | Physics Letters B, 797. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Nucleosynthesis | es |
dc.subject | Neutron capture | es |
dc.subject | Nuclear reactions | es |
dc.subject | s-process | es |
dc.subject | MACS | es |
dc.subject | Neutron activation | es |
dc.title | The s-process in the Nd-Pm-Sm region: Neutron activation of 147Pm | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
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 | FPA2013-45083P | es |
dc.relation.projectID | FPA2014-53290-C2-2-P | es |
dc.relation.projectID | FPA2016-77689-C2-1-R | es |
dc.relation.publisherversion | https://doi.org/10.1016/j.physletb.2019.134809 | es |
dc.identifier.doi | 10.1016/j.physletb.2019.134809 | es |
dc.journaltitle | Physics Letters B | es |
dc.publication.volumen | 797 | es |
dc.contributor.funder | Universidad de Sevilla | es |