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Measurement of the 154Gd(n,γ ) cross section and its astrophysical implications
dc.contributor.author | Porras Sánchez, José Ignacio | |
dc.date.accessioned | 2020-09-04T07:22:28Z | |
dc.date.available | 2020-09-04T07:22:28Z | |
dc.date.issued | 2020-04-03 | |
dc.identifier.citation | Mazzone, A., Cristallo, S., Aberle, O., Alaerts, G., Alcayne, V., Amaducci, S., ... & Barbagallo, M. (2020). Measurement of the 154Gd (n, γ) cross section and its astrophysical implications. Physics Letters B, 804, 135405. [https://doi.org/10.1016/j.physletb.2020.135405] | es_ES |
dc.identifier.uri | http://hdl.handle.net/10481/63282 | |
dc.description | The isotope used in this research was supplied by the United States Department of Energy Office of Science by the Isotope Program in the Office of Nuclear Physics. | es_ES |
dc.description.abstract | The neutron capture cross section of 154Gd was measured from 1 eV to 300 keV in the experimental area located 185 m from the CERN n_TOF neutron spallation source, using a metallic sample of gadolinium, enriched to 67% in 154Gd. The capture measurement, performed with four C6D6 scintillation detectors, has been complemented by a transmission measurement performed at the GELINA time-of-flight facility (JRC-Geel), thus minimising the uncertainty related to sample composition. An accurate Maxwellian averaged capture cross section (MACS) was deduced over the temperature range of interest for s process nucleosynthesis modelling. We report a value of 880(50) mb for the MACS at kT = 30 keV, significantly lower compared to values available in literature. The new adopted 154Gd(n,γ ) cross section reduces the discrepancy between observed and calculated solar s-only isotopic abundances predicted by s-process nucleosynthesis models. | es_ES |
dc.description.sponsorship | EUFRAT open access programme of the Joint Research Centre at Geel | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.rights | Atribución 3.0 España | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | S process | es_ES |
dc.subject | 154Gd | es_ES |
dc.subject | Neutron time-of-flight | es_ES |
dc.subject | n_TOF | es_ES |
dc.title | Measurement of the 154Gd(n,γ ) cross section and its astrophysical implications | es_ES |
dc.type | journal article | es_ES |
dc.rights.accessRights | open access | es_ES |
dc.identifier.doi | 10.1016/j.physletb.2020.135405 |