β-delayed neutron emission of r-process nuclei at the <i>N</i>=82 shell closure



Hall, O, Davinson, T, Estrade, A, Liu, J, Lorusso, G, Montes, F, Nishimura, S, Phong, VH, Woods, PJ, Agramunti, J
et al (show 54 more authors) (2021) β-delayed neutron emission of r-process nuclei at the <i>N</i>=82 shell closure. PHYSICS LETTERS B, 816. p. 136266.

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Abstract

Theoretical models of β-delayed neutron emission are used as crucial inputs in r-process calculations. Benchmarking the predictions of these models is a challenge due to a lack of currently available experimental data. In this work the β-delayed neutron emission probabilities of 33 nuclides in the important mass regions south and south-west of 132Sn are presented, 16 for the first time. The measurements were performed at RIKEN using the Advanced Implantation Detector Array (AIDA) and the BRIKEN neutron detector array. The P1n values presented constrain the predictions of theoretical models in the region, affecting the final abundance distribution of the second r-process peak at A≈130.

Item Type: Article
Uncontrolled Keywords: beta-delayed neutron emission, r-processimportant
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 28 Apr 2021 14:49
Last Modified: 17 Oct 2023 16:14
DOI: 10.1016/j.physletb.2021.136266
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3120881