PT Journal
AU Hall, Oea
   Agramunt, J
   Algora, A
   Domingo-Pardo, C
   Morales, AI
   Rubio, B
   Tain, JL
   Tolosa-Delgado, A
TI beta-delayed neutron emission of r-process nuclei at the N=82 shell closure
SO Physics Letters B
JI Phys. Lett. B
PY 2021
BP 136266
EP 7pp
VL 816
DI 10.1016/j.physletb.2021.136266
LA English
DE beta-delayed neutron emission; r-processimportant
AB Theoretical models of beta-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 beta-delayed neutron emission probabilities of 33 nuclides in the important mass regions south and south-west of Sn-132 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 P-1n values presented constrain the predictions of theoretical models in the region, affecting the final abundance distribution of the second r-process peak at A approximate to 130.
ER