skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

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 Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
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. https://doi.org/10.1103/PhysRevC.92.034319
Zhao, P. W., Zhang, S. Q., and Meng, J. 2015. "Impact of pairing correlations on the orientation of the nuclear spin". United States. https://doi.org/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},
url = {https://www.osti.gov/biblio/1390941}, journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 3,
volume = 92,
place = {United States},
year = {Tue Sep 01 00:00:00 EDT 2015},
month = {Tue Sep 01 00:00:00 EDT 2015}
}

Works referenced in this record:

Critical Frequency in Nuclear Chiral Rotation
journal, July 2004


Tilted cranking
journal, May 1993


Relativistic Hartree?Bogoliubov theory: static and dynamic aspects of exotic nuclear structure
journal, April 2005


The Shears Mechanism in Nuclei
journal, December 2000


Search for the Skyrme-Hartree-Fock solutions for chiral rotation in N = 75 isotones
journal, May 2006


Relativistic continuum Hartree Bogoliubov theory for ground-state properties of exotic nuclei
journal, October 2006


Tilted rotation of triaxial nuclei
journal, May 1997


A Composite Chiral Pair of Rotational Bands in the Odd- A Nucleus N d 135
journal, September 2003


Magnetic rotation in nuclei
journal, March 2005


From Chiral Vibration to Static Chirality in Nd 135
journal, October 2007


Description of multi-quasiparticle bands by the tilted axis cranking model
journal, September 2000


Covariant density functional theory for magnetic rotation
journal, August 2008


Novel structure for magnetic rotation bands in 60Ni
journal, May 2011


Magnetic rotations in 198 Pb and 199 Pb within covariant density functional theory
journal, February 2012


Collective Hamiltonian for wobbling modes
journal, October 2014


Superdeformed Band in Nd 135
journal, May 1987


Progress on tilted axis cranking covariant density functional theory for nuclear magnetic and antimagnetic rotation
journal, February 2013


Energy traps in atomic nuclei
journal, May 1999


Antimagnetic Rotation Band in Nuclei: A Microscopic Description
journal, September 2011


Spontaneous symmetry breaking in rotating nuclei
journal, June 2001


DIRHB—A relativistic self-consistent mean-field framework for atomic nuclei
journal, June 2014


Band crossing in the cranking model
journal, October 1976


A relativistic description of rotating nuclei: The yrast line of 20Ne
journal, February 1989


Transverse wobbling: A collective mode in odd- A triaxial nuclei
journal, January 2014


Investigation of antimagnetic rotation in 100 Pd
journal, September 2001


New parametrization for the nuclear covariant energy density functional with a point-coupling interaction
journal, November 2010


Relativistic mean field description for the shears band mechanism in 84 Rb
journal, November 2000


Transverse Wobbling in Pr 135
journal, February 2015


Covariant density functional theory for antimagnetic rotation
journal, May 2012


Relativistic mean field theory in finite nuclei
journal, January 1996


Chirality in odd-A nucleus 135Nd in particle rotor model
journal, May 2009


Open problems in understanding the nuclear chirality
journal, April 2010


Cranked relativistic Hartree-Bogoliubov theory: Superdeformed bands in the A 190 region
journal, October 1999