High-$j$ neutron excitations outside ${}^{136}$Xe

Abstract

The $\nu 0h_{9/2}$ and $\nu 0i_{13/2}$ strength at ${}^{137}$Xe, a single neutron outside the $N=82$ shell closure, has been determined using the ${}^{136}$Xe($\alpha$,${}^3$He)${}^{137}$Xe reaction carried out at 100 MeV. We confirm the recent observation of the second 13/2${}^{+}$ state and reassess previous data on the 9/2${}^{-}$ states, obtaining spectroscopic factors. These new data provide additional constraints on predictions of the same single-neutron excitations at ${}^{133}$Sn.

10 pages, 9 figures, 4 tables

References in corpus (1)

• High-j single-particle neutron states outside the N=82 core