Beyond-mean-field study of the possible "bubble" structure of 34Si

Jiang-Ming Yao Simone Baroni Michael Bender 1 Paul-Henri Heenen
1 THEO
CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
Abstract : Recent self-consistent mean-field calculations predict a substantial depletion of the proton density in the interior of 34Si. In the present study, we investigate how correlations beyond the mean field modify this finding. The framework of the calculation is a particle-number and angular-momentum projected Generator Coordinate Method based on Hartree-Fock-Bogoliubov+Lipkin-Nogami states with axial quadrupole deformation. The parametrization SLy4 of the Skyrme energy density functional is used together with a density-dependent pairing energy functional. For the first time, the generator coordinate method is applied to the calculation of charge and transition densities. The impact of pairing correlations, symmetry restorations and shape mixing on the density profile is analyzed step by step. All these effects significantly alter the radial density profile, and tend to bring it closer to a Fermi-type density distribution.
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Journal articles
Physical Review C, American Physical Society, 2012, 86, pp.014310. <10.1103/PhysRevC.86.014310>


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Submitted on : Wednesday, July 11, 2012 - 11:00:11 AM
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Jiang-Ming Yao, Simone Baroni, Michael Bender, Paul-Henri Heenen. Beyond-mean-field study of the possible "bubble" structure of 34Si. Physical Review C, American Physical Society, 2012, 86, pp.014310. <10.1103/PhysRevC.86.014310>. <in2p3-00716754>

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