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Title: Impact of pairing correlations on the orientation of the nuclear spin

Abstract

For the first time, the tilted axis cranking covariant density functional theory with pairing correlations has been formulated and implemented in a fully self-consistent and microscopic way to investigate the evolution of the spin axis and the pairing effects in rotating triaxial nuclei. The measured energy spectrum and transition probabilities for the Nd-135 yrast band are reproduced well without any ad hoc renormalization factors when pairing effects are taken into account. A transition from collective to chiral rotation has been demonstrated. It is found that pairing correlations introduce additional admixtures in the single-particle orbitals, and, thus, influence the structure of tilted axis rotating nuclei by reducing the magnitude of the proton and neutron angular momenta while merging their direction.

Authors:
; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1390941
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 92; Journal Issue: 3; Journal ID: ISSN 0556-2813
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

Citation Formats

Zhao, P. W., Zhang, S. Q., and Meng, J. Impact of pairing correlations on the orientation of the nuclear spin. United States: N. p., 2015. Web. doi:10.1103/PhysRevC.92.034319.
Zhao, P. W., Zhang, S. Q., & Meng, J. Impact of pairing correlations on the orientation of the nuclear spin. United States. doi:10.1103/PhysRevC.92.034319.
Zhao, P. W., Zhang, S. Q., and Meng, J. Tue . "Impact of pairing correlations on the orientation of the nuclear spin". United States. doi:10.1103/PhysRevC.92.034319.
@article{osti_1390941,
title = {Impact of pairing correlations on the orientation of the nuclear spin},
author = {Zhao, P. W. and Zhang, S. Q. and Meng, J.},
abstractNote = {For the first time, the tilted axis cranking covariant density functional theory with pairing correlations has been formulated and implemented in a fully self-consistent and microscopic way to investigate the evolution of the spin axis and the pairing effects in rotating triaxial nuclei. The measured energy spectrum and transition probabilities for the Nd-135 yrast band are reproduced well without any ad hoc renormalization factors when pairing effects are taken into account. A transition from collective to chiral rotation has been demonstrated. It is found that pairing correlations introduce additional admixtures in the single-particle orbitals, and, thus, influence the structure of tilted axis rotating nuclei by reducing the magnitude of the proton and neutron angular momenta while merging their direction.},
doi = {10.1103/PhysRevC.92.034319},
journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 3,
volume = 92,
place = {United States},
year = {2015},
month = {9}
}

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