670 research outputs found
Microscopic analysis of a correlation between dipole transitions and in spherical nuclei
Correlation between B() and B() values are considered within microscopic QRPA approach. General
arguments for a dependence of a ratio between these values on a collectivity of
the and phonons and ground state correlations are provided.Comment: 2 page
Reply to comment ``On the test of the modified BCS at finite temperature''
This is our formal Reply to revised version (v2) of arXiv: nucl-th/0510004v2.Comment: accepted in Physical Review
Test of modified BCS model at finite temperature
A recently suggested modified BCS (MBCS) model has been studied at finite
temperature. We show that this approach does not allow the existence of the
normal (non-superfluid) phase at any finite temperature. Other MBCS predictions
such as a negative pairing gap, pairing induced by heating in closed-shell
nuclei, and ``superfluid -- super-superfluid'' phase transition are discussed
also. The MBCS model is tested by comparing with exact solutions for the picket
fence model. Here, severe violation of the internal symmetry of the problem is
detected. The MBCS equations are found to be inconsistent. The limit of the
MBCS applicability has been determined to be far below the ``superfluid --
normal'' phase transition of the conventional FT-BCS, where the model performs
worse than the FT-BCS.Comment: 8 pages, 9 figures, to appear in PR
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