Triaxial strongly deformed bands in {sup 160,161}Tm

Journal Article · Tue Jul 15 04:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.017305· OSTI ID:21192078

Teal, C; Lagergren, K; Aguilar, A; Riley, M A ^[1]; Hartley, D J ^[2]; Simpson, J; Joss, D T ^[3]; Carpenter, M P; Janssens, R V. F.; Lauritsen, T; Lister, C J; Zhu, S ^[4]; Garg, U ^[5]; Kondev, F G ^[6]; Wang, X ^[4]; Ragnarsson, I ^[7]

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1. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)
2. Department of Physics, U.S. Naval Academy, Annapolis, Maryland 21402 (United States)
3. STFC Daresbury Laboratory, Daresbury, Warrington WA4 4AD (United Kingdom)
4. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
5. Physics Department, University of Notre Dame, Notre Dame, Indiana 46556 (United States)
6. Nuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
7. Division of Mathematical Physics, LTH, Lund University, P.O. Box 118, S-22100 Lund (Sweden)

High-spin states in {sup 160,161}Tm were populated using the {sup 128}Te({sup 37}Cl, 5n and 4n) reactions at a beam energy of 170 MeV. Emitted {gamma} rays were detected in the Gammasphere spectrometer. Two rotational bands with high moments of inertia were discovered, one assigned to {sup 160}Tm, while the other tentatively assigned to {sup 161}Tm. These sequences display features similar to bands observed in neighboring Er, Tm, Yb, and Lu nuclei which have been discussed in terms of triaxial strongly deformed structures. Cranked Nilsson Strutinsky calculations have been performed that predict well-deformed triaxial shapes at high spin in {sup 160,161}Tm.

• OSTI ID: 21192078
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 78; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BEAMS
CHLORINE 37
EMISSION
GAMMA RADIATION
HIGH SPIN STATES
MEV RANGE 100-1000
MOMENT OF INERTIA
NEUTRON REACTIONS
NUCLEAR REACTIONS
ROTATIONAL STATES
SIMULATION
SPECTROMETERS
SPIN
TELLURIUM 128 TARGET
THULIUM 160
THULIUM 161