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SUMMARY:New experimental measurements for Ba to Nd nuclei (A$\\sim$160) fo
 r r-process rare-earth nucleosynthesis
DTSTART;VALUE=DATE-TIME:20241120T080000Z
DTEND;VALUE=DATE-TIME:20241120T081500Z
DTSTAMP;VALUE=DATE-TIME:20260421T082706Z
UID:indico-contribution-25487@indico.ific.uv.es
DESCRIPTION:Speakers: Max Pallàs Solís (Universitat Politècnica de Cata
 lunya (UPC))\nThe r-process\, also known as the rapid neutron capture proc
 ess\, plays a crucial role in the formation of more than half of the eleme
 nts that are heavier than iron. To shed light on this process\, the BRIKEN
  collaboration [1] has conducted extensive measurements of the β-decay pr
 operties of important nuclei at the Radioactive Isotope Beam Factory (RIBF
 ) located at the RIKEN Nishina Center in Japan. During the freeze-out phas
 e at the end of neutron exposure\, a distinctive feature called the Rare-E
 arth Peak (REP) emerges in the solar abundance distribution around mass nu
 mber A=160. This study focuses on the region from Ba to Nd\, which is esse
 ntial for understanding REP nucleosynthesis in the r-process\, as indicate
 d by sensitivity studies [2\, 3]. In this work\, we present the final resu
 lts from the BRIKEN-REP experiment\, which include newly determined branch
 ing ratios for $T_{1/2}$ and $P_{1n}$. Additionally\, we offer new theoret
 ical nuclear structure calculations to enhance our understanding of the r-
 process.\n\n\n[1] J.L. Tain et. al \, Acta Physica Polonica B 49(03)\, 417
  $-$ 428 (2018). \\newline\n[2] M. R. Mumpower et al \, Phys. Rev. C 85\, 
 045801 (2012).\n[3] A. Arcones and G. Martinez Pinedo \, Phys. Rev. C 83\,
  045809 (2011).\n\nhttps://indico.ific.uv.es/event/7664/contributions/2548
 7/
LOCATION:
URL:https://indico.ific.uv.es/event/7664/contributions/25487/
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