High-spin states inTc94and the shell-model interpretation

Abstract

High-spin states in the N = 51 nucleus Tc have been investigated with p-ray spectroscopic techniques following the reactions Zn( P,2pn) Tc and Cu(' S,o.3n) Tc. Shell-model calculations have been performed. The excitation of a single neutron across the N = 50 core adequately describes the observed high-spin states in Tc. PACS number(s): 27.60. +j, 23.20.Lv, 21.60.Cs

Multi-quasiparticle excitations and the impact of the high-j intruder orbital in the N = 51 93Mo nucleus *

“…The level structures of nuclei near the Z = 38 semimagic and N = 50 magic shells have been the focus of experimental and theoretical research in recent years [1][2][3][4][5][6][7][8][9]. A number of interesting phenomena, such as single-particle excitation [3][4][5][6][7][8], isomeric states [8][9][10][11][12], collective rotation [13,14], and core breaking [15][16][17][18], have been reported in this mass region. The level structures of Zr, Nb, and Tc isotones around have been extended to higher spins and are well described by the shell model [16][17][18][19].…”