High-spin states in near-spherical 88Y

High-spin states in doubly odd Y-88 have been investigated using the Se-82(B-11, 5n) reaction at beam energies of 48 and 52 MeV. On the basis of the gamma-gamma coincidence relationships, the level scheme of Y-88 has been extended up to an excitation energy of 9.5 MeV at spin 21 (h) over bar. About 20 new levels and 30 new transitions have been added into the level scheme, and spin-parity assignments have been made to most of the newly proposed levels. In order to better understand the nuclear structure of Y-88, semiempirical shell-model calculations were carried out considering a valence space formed by the proton 1p(1/2), 1p(3/2), 0f(5/2), 0g(9/2) and neutron 0g(9/2) orbitals.