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The projected shell model

V Velázquez-+, J G Hirsch-+,++ and Y Sun§

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The projected shell model (PSM) provides a shell model treatment of heavy nuclei, through diagonalization of a pairing plus quadrupole Hamiltonian in an angular momentum projected zero-, two-, and four-quasiparticle basis (for even-even systems). Calculated energy levels and electromagnetic transition amplitudes are in good agreement with the experimental data. Taking as an example, we exhibit the effect of changing the residual interaction strengths on the spectra. It is clearly seen that there are many bandheads whose energies can only be reproduced using the self-consistent strengths. It is concluded that there are no free parameters in the PSM.


PACS

21.60.Cs Shell model

23.20.En Angular distribution and correlation measurements

21.60.Ev Collective models

21.10.Re Collective levels

27.70.+q 150(less-than-or-equal-to)A(less-than-or-equal-to)189

Subjects

Nuclear physics

Dates

Issue 4 (April 1999)

Received 12 November 1998



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