Friday, May 4, 2012

1205.0577 (Guillaume Hupin et al.)

Beyond mean-field calculation for pairing correlation    [PDF]

Guillaume Hupin, Denis Lacroix
The recently proposed Symmetry-Conserving Energy Density Functional approach [G. Hupin, D. Lacroix and M. Bender, Phys. Rev. C84, 014309 (2011)] is applied to perform Variation After Projection onto good particle number using Skyrme interaction, including density dependent terms. We present a systematic study of the Kr and Sn isotopic chains. This approach leads to non-zero pairing in magic nuclei and a global enhancement of the pairing gap compared to the original theory that breaks the particle number symmetry. The need to consistently readjust the pairing effective interaction strength is discussed.
View original: http://arxiv.org/abs/1205.0577

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