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

doi:10.12681/hnps.3605

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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

Päivämäärä

2022

Oppiaine

Kiihdytinlaboratorio Accelerator Laboratory

Tekijänoikeudet

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.

Julkaisija

National Documentation Centre (EKT)

Konferenssi

Annual Symposium of the Hellenic Nuclear Physics Society

Kuuluu julkaisuun

HNPS 2021 : Proceedings of the 29th Annual Symposium of the Hellenic Nuclear Physics Society

ISSN Hae Julkaisufoorumista

2654-007X

Asiasanat

tina ydinfysiikka isotoopit massa (fysiikka)

DOI

https://doi.org/10.12681/hnps.3605

URI

http://urn.fi/URN:NBN:fi:jyu-202211015048

Julkaisu tutkimustietojärjestelmässä

https://converis.jyu.fi/converis/portal/detail/Publication/159358575

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Matemaattis-luonnontieteellinen tiedekunta [6107]

Rahoittaja(t)

Euroopan komissio

Rahoitusohjelmat(t)

The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.

Lisätietoja rahoituksesta

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.

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