Return of Collective Rotation in {sup 157}Er and {sup 158}Er at Ultrahigh Spin
Abstract
A new frontier of discrete-line {gamma}-ray spectroscopy at ultrahigh spin has been opened in the rare-earth nuclei {sup 157,158}Er. Four rotational structures, displaying high moments of inertia, have been identified, which extend up to spin {approx}65({Dirac_h}/2{pi}) and bypass the band-terminating states in these nuclei which occur at {approx}45({Dirac_h}/2{pi}). Cranked Nilsson-Strutinsky calculations suggest that these structures arise from well-deformed triaxial configurations that lie in a valley of favored shell energy which also includes the triaxial strongly deformed bands in {sup 161-167}Lu.
- Authors:
-
- Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE (United Kingdom)
- Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)
- CCLRC Daresbury Laboratory, Daresbury, Warrington WA4 4AD (United Kingdom)
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- Department of Mathematical Physics, Lund Institute of Technology, P.O. Box 118, S-22100 Lund (Sweden)
- Publication Date:
- OSTI Identifier:
- 20861577
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 98; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevLett.98.012501; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; DEFORMED NUCLEI; ERBIUM 157; ERBIUM 158; GAMMA SPECTROSCOPY; LUTETIUM 161; LUTETIUM 162; LUTETIUM 163; LUTETIUM 164; LUTETIUM 165; LUTETIUM 166; LUTETIUM 167; MOMENT OF INERTIA; SPIN
Citation Formats
Paul, E S, Twin, P J, Evans, A O, Choy, P T. W., Nolan, P J, Pipidis, A, Riley, M A, Campbell, D B, Simpson, J, Appelbe, D E, Joss, D T, Clark, R M, Cromaz, M, Fallon, P, Goergen, A, Lee, I Y, Macchiavelli, A O, Ward, D, and Ragnarsson, I. Return of Collective Rotation in {sup 157}Er and {sup 158}Er at Ultrahigh Spin. United States: N. p., 2007.
Web. doi:10.1103/PHYSREVLETT.98.012501.
Paul, E S, Twin, P J, Evans, A O, Choy, P T. W., Nolan, P J, Pipidis, A, Riley, M A, Campbell, D B, Simpson, J, Appelbe, D E, Joss, D T, Clark, R M, Cromaz, M, Fallon, P, Goergen, A, Lee, I Y, Macchiavelli, A O, Ward, D, & Ragnarsson, I. Return of Collective Rotation in {sup 157}Er and {sup 158}Er at Ultrahigh Spin. United States. https://doi.org/10.1103/PHYSREVLETT.98.012501
Paul, E S, Twin, P J, Evans, A O, Choy, P T. W., Nolan, P J, Pipidis, A, Riley, M A, Campbell, D B, Simpson, J, Appelbe, D E, Joss, D T, Clark, R M, Cromaz, M, Fallon, P, Goergen, A, Lee, I Y, Macchiavelli, A O, Ward, D, and Ragnarsson, I. 2007.
"Return of Collective Rotation in {sup 157}Er and {sup 158}Er at Ultrahigh Spin". United States. https://doi.org/10.1103/PHYSREVLETT.98.012501.
@article{osti_20861577,
title = {Return of Collective Rotation in {sup 157}Er and {sup 158}Er at Ultrahigh Spin},
author = {Paul, E S and Twin, P J and Evans, A O and Choy, P T. W. and Nolan, P J and Pipidis, A and Riley, M A and Campbell, D B and Simpson, J and Appelbe, D E and Joss, D T and Clark, R M and Cromaz, M and Fallon, P and Goergen, A and Lee, I Y and Macchiavelli, A O and Ward, D and Ragnarsson, I},
abstractNote = {A new frontier of discrete-line {gamma}-ray spectroscopy at ultrahigh spin has been opened in the rare-earth nuclei {sup 157,158}Er. Four rotational structures, displaying high moments of inertia, have been identified, which extend up to spin {approx}65({Dirac_h}/2{pi}) and bypass the band-terminating states in these nuclei which occur at {approx}45({Dirac_h}/2{pi}). Cranked Nilsson-Strutinsky calculations suggest that these structures arise from well-deformed triaxial configurations that lie in a valley of favored shell energy which also includes the triaxial strongly deformed bands in {sup 161-167}Lu.},
doi = {10.1103/PHYSREVLETT.98.012501},
url = {https://www.osti.gov/biblio/20861577},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 1,
volume = 98,
place = {United States},
year = {Fri Jan 05 00:00:00 EST 2007},
month = {Fri Jan 05 00:00:00 EST 2007}
}
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