Analysis of alpha-induced reactions on ${}^{151}$Eu below the Coulomb barrier

Abstract

Novel measurements of $(\alpha ,\gamma )$ and $(\alpha$,n) reaction cross sections on the target nucleus ${}^{151}$Eu, close to the reaction thresholds, support the setting up of recent parameters of the $\alpha$-particle optical model potential below the Coulomb barrier. A better understanding of the $\alpha$-particle optical potential at these energies leads to a statistical model analysis of additional partial cross sections that were formerly measured but not considered within the model analysis. On this basis we have tentatively assigned a modified $J^{\pi }$=9${}^{-}$ spin and parity to the 22.7-h isomer in ${}^{154}$Tb.

3 pages, 2 figures

References in corpus (1)

• Alpha-induced reaction cross section measurements on 151Eu for the astrophysical gamma-process

Cited by in corpus (2)

• Further explorations of the alpha-particle optical model potential at low energies for the mass range A=45-209
• Isomeric cross sections of fast-neutron induced reactions on ${}^{197}$Au