Thermal nuclear pairing within the self-consistent quasiparticle RPA - Nuclear TheoryReportar como inadecuado




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Abstract: The self-consistent quasiparticle RPA SCQRPA is constructed to study theeffects of fluctuations on pairing properties in nuclei at finite temperatureand z-projection M of angular momentum. Particle-number projection PNP istaken into account within the Lipkin-Nogami method. Several issues such as thesmoothing of superfluid-normal phase transition, thermally assisted pairing inhot rotating nuclei, extraction of the nuclear pairing gap using an improvedodd-even mass difference are discussed. A novel approach of embedding the PNPSCQRPA eigenvalues in the canonical and microcanonical ensembles is proposedand applied to describe the recent empirical thermodynamic quantities for iron,molybdenum, dysprosium, and ytterbium isotopes.



Autor: N. Dinh Dang, N. Quang Hung

Fuente: https://arxiv.org/







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