@Article{n_TOFCollaborationAmaducci_etal2024, author="n{\_}TOF Collaboration (Amaducci, S. et al and Babiano-Suarez, V. and Caballero-Ontanaya, L. and Domingo-Pardo, C. and Ladarescu, I. and Tain, J. L. and Tarife{\~{n}}o-Saldivia, A.", title="Measurement of the 140Ce{\dh}n;$\gamma${\th} Cross Section at n{\_}TOF and Its Astrophysical Implications for the Chemical Evolution of the Universe", journal="Physical Review Letters", year="2024", publisher="Amer Physical Soc", volume="132", number="12", pages="122701--8pp", abstract="140Ce(n, gamma) is a key reaction for slow neutron -capture (s -process) nucleosynthesis due to being a bottleneck in the reaction flow. For this reason, it was measured with high accuracy (uncertainty approximate to 5{\%}) at the n{\_}TOF facility, with an unprecedented combination of a high purity sample and low neutron -sensitivity detectors. The measured Maxwellian averaged cross section is up to 40{\%} higher than previously accepted values. Stellar model calculations indicate a reduction around 20{\%} of the s -process contribution to the Galactic cerium abundance and smaller sizeable differences for most of the heavier elements. No variations are found in the nucleosynthesis from massive stars.", optnote="WOS:001202102900011", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=6074), last updated on Fri, 26 Apr 2024 13:32:21 +0000", issn="0031-9007", doi="10.1103/PhysRevLett.132.122701", opturl="https://doi.org/10.1103/PhysRevLett.132.122701", language="English" }