The island of deformation and shape co-existence in neutron-deficient nuclei of the Pb region using relativistic mean field model
| dc.creator | Mehta, M. S. | |
| dc.creator | Jha, T. K. | |
| dc.creator | Patra, S. K. | |
| dc.creator | Gupta, Raj K. | |
| dc.date | 2004-01-12 | |
| dc.date.accessioned | 2026-07-07T05:40:07Z | |
| dc.date.available | 2026-07-07T05:40:07Z | |
| dc.description | We have investigated the ground-state structures of even-even neutron-deficient isotopes of Hg and Pb nuclei within the framework of a deformed relativistic mean field formalism for a number of commonly used parameter sets, namely NL1, NL3, NL-SH, NL-RA1 and TM1. The ground states of a bunch of Hg and Pb-isotopes towards the proton-dripline are found to be deformed for all the forces, with a constant pairing gap. The small differences in the ground- and the first-excited state binding energies predict a sea of low-lying excited states, and hence of shape co-existence, for both the Hg and Pb nuclei. In general, a discrepancy between the experimentally observed and theoretically predicted (sign of) quadrupole deformations is noticed in this mass region. The constrained potential energy surfaces and the single-particle energy spectra analyzed for some selected nuclei show that the known large shell gap for Pb nuclei at Z=82 is almost extinguished for its proton-rich isotopes. | |
| dc.description | Submitted for publication | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0401021 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0401021 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/82161 | |
| dc.subject | Nuclear Theory | |
| dc.title | The island of deformation and shape co-existence in neutron-deficient nuclei of the Pb region using relativistic mean field model | |
| dc.type | text |