• The collective bands of positive parity states in odd-A (fp) shell nuclei

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    • Keywords


      Collective band of states; positive parityod23/−1 and 1s12/−1 states

    • Abstract


      The low-lying collective bands of positive parity states in (fp) shell nuclei are described in the deformed Hartree-Fock method by projecting states of definite angular momenta from ‘the lowest energy intrinsic states in (sd)−1 (fp)n+1 configurations. The modified Kuo-Brown effective interaction for (fp) shell and modified surface delta interaction (MSDI) for a hole in (sd) shell with a particle in (fp) shell have been used.

      The collective bands of states are in general well reproduced by the effective interactions. The excitation energies of the band head states are however off by about one MeV. The calculated magnetic moments of the band headj=3/2+ states are in reasonable agreement with experiment. Using effective chargesep=1.33e anden=0.64e we get fairly good agreement forE(2) transitions. The hinderedM(1) transition strengths are reproduced to the correct order however they are slightly higher compared to experiment.

    • Author Affiliations


      D P Ahalpara1

      1. Physical Research Laboratory, Ahmedabad - 380 009
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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