Evolution from spherical single-particle structure to stable triaxiality at high spins in {sup 140}Nd

Journal Article · Thu Dec 15 04:00:00 EST 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.064318· OSTI ID:20771094

Petrache, C M; Fantuzi, M; LoBianco, G; Mengoni, D ^[1]; Neusser-Neffgen, A; Huebel, H; Al-Khatib, A; Bringel, P; Buerger, A; Nenoff, N; Schoenwasser, G; Singh, A K ^[2]; Ragnarsson, I ^[3]; Hagemann, G B; Herskind, B; Jensen, D R; Sletten, G ^[4]; Fallon, P; Goergen, A ^[5]; Bednarczyk, P ^[6]

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1. Dipartimento di Fisica, Universita di Camerino and Instituto Nazionale di Fisica Nucleare, Sezione di Perugia, I-62032, Camerino (Italy)
2. Helmholtz-Institut fuer Strahlen- und Kernphysik, Universitaet Bonn, Nussallee 14-16, D-53115 Bonn (Germany)
3. Department of Mathematical Physics, Lund Institute of Technology, S-22362 Lund (Sweden)
4. Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen (Denmark)
5. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
6. Institut de Recherches Subatomiques, 23 Rue du Loess, F-67037 Strasbourg (France)

The level structure of {sub 60}{sup 140}Nd{sub 80} has been established up to spin 48 by in-beam {gamma}-ray spectroscopy by use of the {sup 96}Zr({sup 48}Ca, 4n) reaction. High-fold {gamma}-ray coincidences were measured with the EUROBALL spectrometer. Twelve new rotational bands have been discovered at high spins. They are interpreted as being formed in a deep triaxial minimum at {epsilon}{sub 2}{approx_equal}0.25 and {gamma}{approx_equal}35 deg. Possible configurations are assigned to the observed bands on the basis of configuration-dependent cranked Nilsson-Strutinsky calculations.

• OSTI ID: 20771094
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 72; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALCIUM 48 REACTIONS
CRANKING MODEL
ENERGY-LEVEL TRANSITIONS
GAMMA RADIATION
GAMMA SPECTRA
GAMMA SPECTROSCOPY
HIGH SPIN STATES
NEODYMIUM 140
ROTATIONAL STATES
SPHERICAL CONFIGURATION
SPIN
ZIRCONIUM 96 TARGET