Determination of the Neutron-Capture Rate of 17C for the R-process Nucleosynthesis

Heine, M.; Typel, S.; Wu, M.-R.; Adachi, T.; Aksyutina, Y.; Alcantara, J.; Altstadt, S.; Alvarez-Pol, H.; Ashwood, N.; Atar, L.; Aumann, T.; Avdeichikov, V.; Barr, M.; Beceiro-Novo, S.; Bemmerer, D.; Benlliure, J.; Bertulani, C. A.; Boretzky, K.; Borge, M. J. G.; Burgunder, G.; Caamano, M.; Caesar, C.; Casarejos, E.; Catford, W.; Cederkall, J.; Chakraborty, S.; Chartier, M.; Chulkov, L. V.; Cortina-Gil, D.; Crespo, R.; Datta Pramanik, U.; Dıaz Fernandez, P.; Dillmann, I.; Elekes, Z.; Enders, J.; Ershova, O.; Estrade, A.; Kanungo, R.

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dc.creator	Heine, M.
dc.creator	Typel, S.
dc.creator	Wu, M.-R.
dc.creator	Adachi, T.
dc.creator	Aksyutina, Y.
dc.creator	Alcantara, J.
dc.creator	Altstadt, S.
dc.creator	Alvarez-Pol, H.
dc.creator	Ashwood, N.
dc.creator	Atar, L.
dc.creator	Aumann, T.
dc.creator	Avdeichikov, V.
dc.creator	Barr, M.
dc.creator	Beceiro-Novo, S.
dc.creator	Bemmerer, D.
dc.creator	Benlliure, J.
dc.creator	Bertulani, C. A.
dc.creator	Boretzky, K.
dc.creator	Borge, M. J. G.
dc.creator	Burgunder, G.
dc.creator	Caamano, M.
dc.creator	Caesar, C.
dc.creator	Casarejos, E.
dc.creator	Catford, W.
dc.creator	Cederkall, J.
dc.creator	Chakraborty, S.
dc.creator	Chartier, M.
dc.creator	Chulkov, L. V.
dc.creator	Cortina-Gil, D.
dc.creator	Crespo, R.
dc.creator	Datta Pramanik, U.
dc.creator	Dıaz Fernandez, P.
dc.creator	Dillmann, I.
dc.creator	Elekes, Z.
dc.creator	Enders, J.
dc.creator	Ershova, O.
dc.creator	Estrade, A.
dc.creator	Kanungo, R.
dc.date.accessioned	2021-08-10T15:46:53Z
dc.date.available	2021-08-10T15:46:53Z
dc.date.issued	2017-01-30
dc.identifier.issn	2469-9985
dc.identifier.uri	http://library2.smu.ca/xmlui/handle/01/29733
dc.description	Accepted Version	en_CA
dc.description.abstract	With the R<sup>3</sup>B-LAND setup at GSI we have measured exclusive relative-energy spectra of the Coulomb dissociation of <sup>18</sup>C at a projectile energy around 425A MeV on a lead target, which are needed to determine the radiative neutron-capture cross sections of <sup>17</sup>C into the ground state of <sup>18</sup>C. Those data have been used to constrain theoretical calculations for transitions populating excited states in <sup>18</sup>C. This allowed to derive the astrophysical cross section σ<sup>&lowast;</sup><sub>nγ</sub> accounting for the thermal population of <sup>17</sup>C target states in astrophysical scenarios. The experimentally verified capture rate is significantly lower than those of previously obtained Hauser-Feshbach estimations at temperatures T<sub>9</sub>≤1 GK. Network simulations with updated neutron-capture rates and hydrodynamics according to the neutrino-driven wind model as well as the neutron-star merger scenario reveal no pronounced influence of neutron capture of <sup>17</sup>C on the production of second- and third-peak elements in contrast to earlier sensitivity studies.	en_CA
dc.description.provenance	Submitted by Sherry Briere (sherry.briere@smu.ca) on 2021-08-10T15:46:53Z No. of bitstreams: 1 Estrade_A_article_2017_3.pdf: 903554 bytes, checksum: cb5b0fcab5bb6c9914b5148befb3664a (MD5)	en
dc.description.provenance	Made available in DSpace on 2021-08-10T15:46:53Z (GMT). No. of bitstreams: 1 Estrade_A_article_2017_3.pdf: 903554 bytes, checksum: cb5b0fcab5bb6c9914b5148befb3664a (MD5) Previous issue date: 2017-01-30	en
dc.language.iso	en	en_CA
dc.publisher	American Physical Society	en_CA
dc.relation.uri	https://doi.org/10.1103/PhysRevC.95.014613
dc.subject.lcsh	Nucleosynthesis
dc.subject.lcsh	Neutrons -- Capture
dc.subject.lcsh	Astrophysics
dc.title	Determination of the Neutron-Capture Rate of 17C for the R-process Nucleosynthesis	en_CA
dc.title.alternative	Determination of the Neutron-Capture Rate of Carbon-17 for the R-process Nucleosynthesis
dc.type	Text	en_CA
dcterms.bibliographicCitation	Physical Review C 95(1), 014613. (2017)	en_CA