M. Saha

Low-spin identical bands in the N p N n scheme

The occurrence of low-spin identical bands in the rare-earth region is shown to be the manifestation of a more general property of nuclear excitation mechanism, i.e., a smooth dependence of the moment of inertia on a very simple function of the valence proton and neutron numbers.

Band structure in sup 95 Ru

The {sup 95}Ru nucleus has been studied through the {sup 94}Mo({alpha},3{ital n}){sup 95}Ru reaction. A level scheme has been proposed from {gamma}-{gamma} coincidence data and spin assignments are made on the basis of the results of angular distribution measurements. A rotation-particle coupling calculation has been performed and the proposed level scheme is discussed in the light of its predictions. The results obtained in the present work are also compared to those of previous investigations on this nucleus.

Band structure in Ru 95

The {sup 95}Ru nucleus has been studied through the {sup 94}Mo({alpha},3{ital n}){sup 95}Ru reaction. A level scheme has been proposed from {gamma}-{gamma} coincidence data and spin assignments are made on the basis of the results of angular distribution measurements. A rotation-particle coupling calculation has been performed and the proposed level scheme is discussed in the light of its predictions. The results obtained in the present work are also compared to those of previous investigations on this nucleus.

Band structure inRu95

The {sup 95}Ru nucleus has been studied through the {sup 94}Mo({alpha},3{ital n}){sup 95}Ru reaction. A level scheme has been proposed from {gamma}-{gamma} coincidence data and spin assignments are made on the basis of the results of angular distribution measurements. A rotation-particle coupling calculation has been performed and the proposed level scheme is discussed in the light of its predictions. The results obtained in the present work are also compared to those of previous investigations on this nucleus.

Coriolis attenuation in the rare earth region

It is shown that the observed rotational band structure in a number of odd-proton and odd-neutron nuclei situated in the rare earth region, can be reproduced in the particle-rotor model without any ad hoc reduction of the Coriolis matrix elements if a value of the pairing gap parameter, which is about 30–40% of that deduced from the corresponding odd-even mass difference, is used. The importance of the proper choice of the pairing gap parameter in the study of the Coriolis attenuation problem is emphasised.