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Analysis of the impact of the 204Tl neutron capture cross section on the s-process only isotope 204Pb.

Authors :
Casanovas-Hoste, Adrià
Domingo-Pardo, César
Guerrero, Carlos
Tarifeño-Saldivia, Ariel
Calviño, Francisco
Lerendegui-Marco, Jorge
Source :
EPJ Web of Conferences. 2/24/2022, Vol. 260, p1-5. 5p.
Publication Year :
2022

Abstract

In the study of the slow (s) process of nucleosynthesis branching nuclei become of particular interest. These nuclei have half-lives of the order of 1-100 years, and in the stellar environment their decay rate can compete with the neutron capture rate, which effectively leads to a split of the s-process path. Due to the dependence of the decay and the neutron capture rates on the the physical conditions -temperature and neutron density-of the nucleosynthesis environment, variations in these conditions lead to a change in the abundances of the immediately following nuclei. A very interesting branching point is the s-process only 204Tl, which decays to 204Pb. In this work we show how the capture cross section of 204Tl is a key nuclear input which, in addition to being crucial in fixing the ultimate 204Pb s-process abundance, makes the latter sensible to the temperature and neutron density of the stellar environment where the s-process takes place. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
21016275
Volume :
260
Database :
Academic Search Index
Journal :
EPJ Web of Conferences
Publication Type :
Conference
Accession number :
155843115
Full Text :
https://doi.org/10.1051/epjconf/202226002002