Impact of nuclear mass measurements in the vicinity of 132Sn on the r-process nucleosynthesis
Nikas, Stylianos, Kankainen, Anu, Beliuskina, Olga, Nesterenko, Dmitrii, IGISOL group. (2022). Impact of nuclear mass measurements in the vicinity of 132Sn on the r-process nucleosynthesis. In G. Apostolopoulos, M. Axiotis, A.-G. Karydas, A. Lagoyannis, A. Martinou, I. E. Stamatelatos, & T. Vasilopoulou (Eds.), HNPS 2021 : Proceedings of the 29th Annual Symposium of the Hellenic Nuclear Physics Society (pp. 86-92). National Documentation Centre (EKT). HNPS Advances in Nuclear Physics, 28. https://doi.org/10.12681/hnps.3605
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HNPS Advances in Nuclear PhysicsDate
2022Copyright
© 2022 Authors
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.
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National Documentation Centre (EKT)Conference
Annual Symposium of the Hellenic Nuclear Physics SocietyIs part of publication
HNPS 2021 : Proceedings of the 29th Annual Symposium of the Hellenic Nuclear Physics SocietyISSN Search the Publication Forum
2654-007XKeywords
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ERC Consolidator Grant
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The authors want to acknowledge funding from the European Union’s Horizon 2020 research and innovation programme (ERC Consolidator Grant 2017) under grant agreement No. 771036 project MAIDEN.License
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