Dependence of Quasi-Particle Alignment on Proton Number in N=44 Isotones ⁸²Sr,⁸³Y,⁸⁴Zr and ⁸⁵Nb

【摘要】 The g-factors of Ground Rotational Band states of N=44 isotones 82Sr, 83Y, 84Zr and 85Nb have been measured by the transient-magnetic-field ion implantation perturbed angular distribution (TMF-IMPAD) method. The measured g-factors of 82Sr increase with the increase of spin I, indicating a proton alignment only. Positive peaks appear in the variation of g-factors with spin for 83Y and 84Zr at spin 21/2+ and 10+ respectively, indicating a proton alignment followed by a neutron alignment. A negative peak occurs for 85Nb at the spin25/2+ , indicating a neutron alignment followed by a proton alignment.更多还原

【Abstract】 The g-factors of Ground Rotational Band states of N=44 isotones 82Sr, 83Y, 84Zr and 85Nb have been measured by the transient-magnetic-field ion implantation perturbed angular distribution (TMF-IMPAD) method. The measured g-factors of 82Sr increase with the increase of spin I, indicating a proton alignment only. Positive peaks appear in the variation of g-factors with spin for 83Y and 84Zr at spin 21/2+ and 10+ respectively, indicating a proton alignment followed by a neutron alignment. A negative peak occurs for 85Nb at the spin25/2+ , indicating a neutron alignment followed by a proton alignment.更多还原