Variation of pairing correlations caused by nuclear rotation

Journal Article · Fri Feb 01 04:00:00 EST 1991 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.43.596· OSTI ID:5845021

Tazaki, S; Muramatsu, K; Hayakawa, R ^[1]; Hasegawa, M ^[2]

---

1. Department of Applied Physics, Fukuoka University, Fukuoka, 814-01, Japan (JP)
2. Laboratory of Physics, Fukuoka Dental College, Fukuoka (Japan)

The interplay between nuclear rotation and the pairing correlations is studied in the single-{ital j} shell model space with {ital j}=13/2. For this study, we employ both the cranking model and the particle-rotor model, the Hamiltonians of which are exactly diagonalized to avoid the ambiguity of the number-nonconserving pair field approximation. The discussions on the merit of the two models show that the particle-rotor model is more reliable than the cranking model. Through the investigations of the spin alignments, the pairing energy gap, and the wave functions, it is shown that the pairing vibrational modes play very important roles. The processes of the collapse of nucleon pairs due to the nuclear rotation are also discussed.

• OSTI ID: 5845021
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 43:2; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CRANKING MODEL
ENERGY GAP
ENERGY LEVELS
EXCITED STATES
FUNCTIONS
INTERACTIONS
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEAR STRUCTURE
PAIRING INTERACTIONS
PARTICLE-CORE COUPLING MODEL
ROTATIONAL STATES
SHELL MODELS
WAVE FUNCTIONS