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Impact of nuclear mass measurements in the vicinity of 132Sn on the r-process nucleosynthesis

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Impact of nuclear mass measurements in the vicinity of 132Sn on the r-process nucleosynthesis (EN)
Kankainen, Anu
Nesterenko, Dmitrii
NIKAS, STYLIANOS
Beliuskina, Olga
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Theoretical (EN)
2022-10-17
Nuclear masses are a key aspect in the modelling of nuclear reaction rates for the r-process nucleosynthesis. High precision mass measurements drastically reduce the associated uncertainties in the modelling of r-process nucleosynthesis. We investigate the impact of nuclear mass uncertainties on neutron-capture rates calculations using a Hauser – Feshbach statistical code in the vicinity of 132Sn. Finally, we study the impact of the propagated neutron-capture reaction rates uncertainties on the r-process nucleosynthesis. We find that mass measurements with uncertainties higher than 20 keV affect the calculation of reaction rates. We also note that modelling of reaction rates can differ for more than a factor of two even for experimentally known nuclear masses. (EN)
Penning traps (EN)
Hauser-Feshbach (EN)
neutron-capture rates (EN)
r-process (EN)
Annual Symposium of the Hellenic Nuclear Physics Society
English
Hellenic Nuclear Physics Society (HNPS) (EN)
2654-0088
2654-007X
Annual Symposium of the Hellenic Nuclear Physics Society; Τόμ. 28 (2021); 86-92 (EL)
HNPS Advances in Nuclear Physics; Vol. 28 (2021): HNPS2021; 86-92 (EN)
Πνευματική ιδιοκτησία (c) 2022 STYLIANOS NIKAS (EL)
http://creativecommons.org/licenses/by-nc-nd/4.0
Hellenic Nuclear Physics Society
Annual Symposium of the Hellenic Nuclear Physics Society
Oral contributions



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