Nuclear pairing reduction due to rotation and blocking
作者： X. Wu , Z. H. Zhang , J. Y. Zeng , Y. A. Lei
DOI: 10.1103/PHYSREVC.83.034323
关键词:
摘要: Nuclear pairing gaps of normally deformed and superdeformed nuclei are investigated using the particle-number-conserving (PNC) formalism for cranked shell model, in which blocking effects treated exactly. Both rotational frequency omega dependence seniority (number unpaired particles) nu gap (Delta) over tilde investigated. For ground-state bands even-even nuclei, PNC calculations show that, general, decreases with increasing omega, but is much weaker than that calculated by number-projected Hartree-Fock-Bogolyubov approach. multiquasiparticle (seniority > 2), stay almost independent. As a function nu, bandhead tilde(nu, = 0) decrease slowly nu. Even highest identified so far, remains greater 70% tilde(nu 0, 0).
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