COLLECTIVE BANDS IN 68Se

The collective bands of the N = Z nucleus 68 Se are studied within our deformed configuration mixing shell model based on Hartree–Fock states. The configuration space consists of the spherical single particle orbits 1p3/2, 0f5/2, 1p1/2 and 0g9/2 with 56 Ni as the inert core. A modified Kuo interaction for this basis space has been used in our calculation. The calculated ground band, K = 2+ excited band and the K = 5- excited band agree reasonably well with the experiment. Our calculation shows that the ground band is essentially of oblate shape and the excited K = 2+ band is of prolate shape. This is in agreement with the conclusions drawn from the recent experimental analysis.

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Collective bands in 80,82Kr

Canadian Journal of Physics ◽

10.1139/p07-047 ◽

2007 ◽

Vol 85 (3) ◽

pp. 269-278 ◽

Cited By ~ 2

Author(s):

S Mishra ◽

K C Tripathy ◽

R Sahu

Keyword(s):

Experimental Data ◽

Angular Momentum ◽

Configuration Space ◽

Negative Parity ◽

Model Calculations ◽

Ground Band ◽

Particle Orbits ◽

Inert Core ◽

21.60 Jz ◽

Different Levels

Deformed shell-model calculations are performed to study the structure of the collective bands in 80,82Kr. In our microscopic model, the single particle orbits 1p3/2, 0f5/2, 1p1/2, and 0g9/2 constitute the configuration space with 56Ni as the inert core. A modified Kuo interaction for this basis space is used in our calculation. The different levels are classified into collective bands on the basis of the B(E2) values among them. The calculated ground bands and quasi-gamma bands for both the nuclei agree reasonably well with experiment. The negative parity bands are also well-reproduced in our calculation. The calculated B(E2) values are compared with available experimental data. The nature of angular momentum alignment in the ground band is also discussed. PACS Nos.: 21.10.–k, 21.60.Jz, 27.50.+e

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DEFORMED SHELL MODEL RESULTS FOR TWO-NEUTRINO POSITRON DOUBLE BETA DECAY OF 84Sr

International Journal of Modern Physics E ◽

10.1142/s021830131101957x ◽

2011 ◽

Vol 20 (08) ◽

pp. 1723-1733 ◽

Cited By ~ 5

Author(s):

R. SAHU ◽

V. K. B. KOTA

Keyword(s):

Shell Model ◽

Beta Decay ◽

Single Particle ◽

Double Beta Decay ◽

Orbital Energy ◽

Decay Modes ◽

Fock States ◽

Hartree Fock ◽

Model Based ◽

Reasonable Description

Half-lives [Formula: see text] for two-neutrino positron double beta decay modes β+ EC/ECEC are calculated for 84 Sr , a nucleus of current experimental interest, within the framework of the deformed shell model based on Hartree–Fock states employing a modified Kuo interaction in (2p3/2, 1f5/2, 2p1/2, 1g9/2) space. For a reasonable description of the spectra of 84 Sr and 84 Kr and to generate allowed GT strengths, the single particle energies of the proton and neutron 1g9/2 orbitals, relative to the 2p3/2 orbital energy, are chosen to be 3.5 MeV and 1.5 MeV for both 84 Sr and 84 Rb and 1.5 MeV and 1.5 MeV for 84 Kr . With this, the calculated half-lives for the β+ EC and ECEC modes are ~1026 yr and ~4×1024 yr respectively.

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Projected Hartree-Fock states for Ne and Si using a realistic two-body potential

Nuclear Physics A ◽

10.1016/s0375-9474(68)91664-3 ◽

1968 ◽

Vol 111 (1) ◽

pp. 353-359

Author(s):

A STAMP ◽

M SPENCER

Keyword(s):

Fock States ◽

Hartree Fock ◽

Body Potential

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AN INVESTIGATION ON SHAPE EVOLUTION OF Ti ISOTOPES WITH HARTREE–FOCK–BOGOLIUBOV THEORY

Modern Physics Letters A ◽

10.1142/s0217732312501623 ◽

2012 ◽

Vol 27 (28) ◽

pp. 1250162 ◽

Cited By ~ 4

Author(s):

TUNCAY BAYRAM

Keyword(s):

Potential Energy ◽

Single Particle ◽

Potential Energy Curves ◽

Shape Evolution ◽

Shape Transition ◽

Hartree Fock ◽

Bogoliubov Theory ◽

Unstable Nuclei

Constrained Hartree–Fock–Bogoliubov theory with SLy4 and SLy5 Skyrme forces is used to investigate the shape transition between spherical and γ-unstable nuclei in 38–66 Ti . By examining potential energy curves and neutron single-particle levels of even–even Ti isotopes, 46,52,60 Ti are suggested as possible candidates of the nuclei with E(5) symmetry.

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