Ground-State Band and Deformation of the Z = 102 Isotope N {sup 254}

Journal Article · Fri Jan 01 04:00:00 EST 1999 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.82.509· OSTI ID:342703

Reiter, P; Khoo, T L; Lister, C J; Seweryniak, D; Ahmad, I; Alcorta, M; Carpenter, M P; Cizewski, J A; Davids, C N; Gervais, G; Greene, J P; Henning, W F; Janssens, R V; Lauritsen, T; Siem, S; Sonzogni, A A; Sullivan, D; Uusitalo, J; Wiedenhoever, I ^[1]; Amzal, N ; Butler, P A; Chewter, A J; Greenlees, P T; Herzberg, R; Jones, G D ^[2]; Cizewski, J A; Ding, K Y; Fotiades, N ^[3]; Fox, J D ^[4]; Korten, W ^[5]; Leino, M ^[6]; Vetter, K ^[7]; Siem, S ^[8]

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1. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. University of Liverpool, Liverpool L69 7ZE (England)
3. Rutgers University, New Brunswick, New Jersey 08903 (United States)
4. Florida State University, Tallahassee, Florida 32306 (United States)
5. DAPNIA/SPhN, CEA Saclay, F-91191 Gif-sur-Yvette Cedex (France)
6. University of Jyvaeskylae, Jyvaeskylae (Finland)
7. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
8. University of Oslo, Oslo (Norway)

The ground-state band of the Z=102 isotope {sup 254}No has been identified up to spin 14, indicating that the nucleus is deformed. The deduced quadrupole deformation, {beta}=0.27 , is in agreement with theoretical predictions. These observations confirm that the shell-correction energy responsible for the stability of transfermium nuclei is partly derived from deformation. The survival of {sup 254}No up to spin 14 means that its fission barrier persists at least up to that spin. {copyright} {ital 1999} {ital The American Physical Society }

• Research Organization: Lawrence Berkeley National Laboratory
• DOE Contract Number: AC03-76SF00098; W-31109-ENG-38
• OSTI ID: 342703
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 3 Vol. 82; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DEFORMED NUCLEI
GROUND STATES
NOBELIUM
NOBELIUM 254
NOBELIUM ISOTOPES
NUCLEAR DEFORMATION
SHELL MODELS
SPIN