Energy levels in 141Nd from fusion evaporation study

The nucleus Nd-141 has been investigated using two different heavy ion fusion evaporation reactions, namely Te-130(O-16, 5n) at E-lab = 80-85 MeV and Sn-124(Mg-24,alpha 3n) at E-lab = 107 MeV, and the de-exciting gamma rays were detected using HPGe(GDA) and Clover detector (INGA) arrays, respectively. More than 30 new gamma transitions have been placed in the proposed level scheme, which has been extended up to 9 MeV excitation energy and spin parity values of 45/2(-). Spin parity assignments have been made to most of the newly proposed levels. The structure up to approximately 6 MeV excitation energy and spin 31/2(-) can be explained using the shell model in a truncated basis. The levels with higher spin/energy cannot be described using even the full 50-82 shell, indicating the influence of neutron excitations across the shell gap in this mass region. One M1 band that has been observed is proposed to have a five quasiparticle configuration.