Re-appearance of the pairing correlations at finite temperature

Details Re-appearance of the pairing correlations at finite temperature Re-appearance of the pairing correlations at finite temperature

2005-05-13

arxiv.org/abs/nucl-th/0505038v1

Phys.Rev. C72 (2005) 041301

Physics

Nuclear Physics

Nuclear Theory

16 pages 6 figures

Scientific paper

10.1103/PhysRevC.72.041301

Rotational and deformation dependence of isovector and isoscalar pairing correlations at finite temperature are studied in an exactly solvable cranked deformed shell model Hamiltonian. It is shown that isovector pairing correlations, as expected, decrease with increasing deformation and the isoscalar pairing correlations remain constant at temperature, T=0. However, it is observed that at finite temperature both isovector and isoscalar pairing correlations are enhanced with increasing deformation, which contradict the mean-field predictions. It is also demonstrated that the pair correlations, which are quenched at T=0 and high rotational frequency re-appear at finite temperature. The changes in the individual multipole pairing fields as a function of rotation and deformation are analyzed in detail.

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