The yrast band of the N=Z nucleus 84Mo has been extended up to the 10+ state. Its moment of inertia varies smoothly up to this state (rotational frequency 0.6 MeV). The new data confirm the systematic delay of the particle alignment frequency in N=Z nuclei with respect to the neighboring N>Z nuclei, which has been suggested as a signature of the neutron-proton pairing interaction. Projected shell model calculations performed for the heaviest N=Z nuclei studied so far, 84Mo and 88Ru, predict that the confirmation of a possible enhancement of the neutron-proton residual interaction requires the observation of still higher spins in these nuclei.
Delayed alignments in the N=Z nuclei 84Mo and 88Ru
LUNARDI, SANTO;LENZI, SILVIA MONICA;PAVAN, PIETRO;
2002
Abstract
The yrast band of the N=Z nucleus 84Mo has been extended up to the 10+ state. Its moment of inertia varies smoothly up to this state (rotational frequency 0.6 MeV). The new data confirm the systematic delay of the particle alignment frequency in N=Z nuclei with respect to the neighboring N>Z nuclei, which has been suggested as a signature of the neutron-proton pairing interaction. Projected shell model calculations performed for the heaviest N=Z nuclei studied so far, 84Mo and 88Ru, predict that the confirmation of a possible enhancement of the neutron-proton residual interaction requires the observation of still higher spins in these nuclei.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
