Reduction of nuclear moment of inertia due to pairing interaction

Zeng, Jumei; Jin, Tong; Zhao, Zhanzheng

doi:10.1103/physrevc.50.1388

Cited by 112 publications

(124 citation statements)

References 32 publications

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“…Calculations show that for the low-lying excited eigenstates of H CSM , the number of important CMPC's (with weight ≥ 1%, say) is very limited (usually < 20 for the ND rareearth nuclei), thus it is not difficult to get sufficiently accurate solutions to the low-lying excited eigenstates of H CSM by diagonizing H CSM in a sufficiently large CMPC space [23,24].…”

Section: And For the Qp Vacuum Bandmentioning

confidence: 99%

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Nuclear pairing reduction due to rotation and blocking

et al. 2011

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Nuclear pairing gaps of normally deformed and superdeformed nuclei are investigated using the particle-number conserving (PNC) formalism for the cranked shell model, in which the blocking effects are treated exactly. Both rotational frequency ω-dependence and seniority (number of unpaired particles) ν-dependence of the pairing gap∆ are investigated. For the ground-state bands of even-even nuclei, PNC calculations show that in general∆ decreases with increasing ω, but the ω-dependence is much weaker than that calculated by the number-projected Hartree-FockBogolyubov approach. For the multiquasiparticle bands (seniority ν > 2), the pairing gaps keep almost ω-independent. As a function of the seniority ν, the bandhead pairing gaps∆(ν, ω = 0) decrease slowly with increasing ν. Even for the highest seniority ν bands identified so far,∆(ν, ω = 0) remains greater than 70% of∆(ν = 0, ω = 0).

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Section: And For the Qp Vacuum Bandmentioning

confidence: 99%

“…The details of the PNC formalism for calculating the MOI have been given in [24]. Only the PNC formalism for calculating the nuclear pairing gap is given in Sect.…”

Section: Introductionmentioning

confidence: 99%

Nuclear pairing reduction due to rotation and blocking

et al. 2011

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“…Extensive studies and discussion on the validity of the truncated many-body spaces as well as its application can be found in Refs. [40,41,42,43,44] and references therein.…”

Section: Introductionmentioning

confidence: 99%

Shell-model-like Approach (SLAP) for the Nuclear Properties in Relativistic Mean Field Theory

et al. 2006

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A Shell-model-Like APproach (SLAP) suggested to treat the pairing correlations in relativistic mean field theory is introduced, in which the occupancies thus obtained having been iterated back into the densities. The formalism and numerical techniques are given in detail. As examples, the ground state properties and low-lying excited states for Ne isotopes are studied. The results thus obtained are compared with the data available. The binding energies, the odd-even staggering, as well as the tendency for the change of the shapes in Ne isotopes are correctly reproduced.

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“…In this paper, the cranked shell model (CSM) with pairing correlations treated by a particle-number conserving (PNC) method [26,27] is used to investigate the two high-spin rotational bands recently observed in the proton emitter 113 Cs [15]. In contrary to the conventional Bardeen-Cooper-Schrieffer or Hartree-Fock-Bogolyubov approaches, in the PNC method, the Hamiltonian is diagonalized directly in a truncated Fock-space [28].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the high-spin rotational properties of the proton emitter ¹¹³ Cs using a particle-number conserving method

Zhang¹,

Xu²

2017

Chinese Phys. C

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Abstract:The recently observed two high-spin rotational bands in the proton emitter 113 Cs are investigated using the cranked shell model with pairing correlations treated by a particle-number conserving method, in which the Pauli blocking effects are taken into account exactly. By using the configuration assignments of band 1 (π3/2 + [422], α = −1/2) and band 2 (π1/2 + [420], α = 1/2), the experimental moments of inertia and quasiparticle alignments can be well reproduced by the present calculations, which in turn strongly support these configuration assignments. Furthermore, by analyzing the occupation probability nµ of each cranked Nilsson level near the Fermi surface and the contribution of each orbital to the angular momentum alignments, the backbending mechanism of these two bands is also investigated.

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Reduction of nuclear moment of inertia due to pairing interaction

Cited by 112 publications

References 32 publications

Nuclear pairing reduction due to rotation and blocking

Nuclear pairing reduction due to rotation and blocking

Shell-model-like Approach (SLAP) for the Nuclear Properties in Relativistic Mean Field Theory

Investigation of the high-spin rotational properties of the proton emitter ¹¹³ Cs using a particle-number conserving method

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Reduction of nuclear moment of inertia due to pairing interaction

Cited by 112 publications

References 32 publications

Nuclear pairing reduction due to rotation and blocking

Nuclear pairing reduction due to rotation and blocking

Shell-model-like Approach (SLAP) for the Nuclear Properties in Relativistic Mean Field Theory

Investigation of the high-spin rotational properties of the proton emitter 113 Cs using a particle-number conserving method

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Investigation of the high-spin rotational properties of the proton emitter ¹¹³ Cs using a particle-number conserving method