T=0 and T=1 states in the odd-odd N=Z nucleus, 3570Br35
Creators
- Jenkins, D.G.1, 2
- Kelsall, N.S.3
- Wadsworth, R.3
- Lister, C.J.1
- Carpenter, M.P.1
- Sienko, T.A.1
- Balamuth, D.P.2
- Fischer, S.M.4
- Clark, R.M.5
- Fallon, P.5
- Goergen, A.5
- Macchiavelli, A.O.5
- Svensson, C.E.5
- Reviol, W.6
- Sarantites, D.G.6
- Ball, G.C.7
- Rikovska Stone, J.8, 9
- Juillet, O.10
- Van Isacker, P.10
- Afanasjev, A.V.11, 12, 1
- and others
- 1. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- 2. Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania 19104 (United States)
- 3. Department of Physics, University of York, Heslington, York YO1 5DD (United Kingdom)
- 4. Department of Physics, DePaul University, Chicago, Illinois 60614 (United States)
- 5. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- 6. Department of Chemistry, Washington University, St. Louis, Missouri 63130 (United States)
- 7. TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (Canada)
- 8. Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742 (United States)
- 9. Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU (United Kingdom)
- 10. Grand Accelerateur National d'Ions Lourds, Boite Postale 55027, F-14076 Caen Cedex 5 (France)
- 11. Laboratory of Radiation Physics, Institute of Solid State Physics, University of Latvia, LV 2169 Salaspils, Miera str. 31 (Latvia)
- 12. Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)
Description
Excited states in 70Br were populated in the 40Ca(32S,pn) reaction at Ebeam=80-100 MeV and the 40Ca(36Ar,αpn) reaction at Ebeam=145 MeV. The resulting gamma decay was detected using the Gammasphere array triggered by a 30-element neutron detector. The cross-bombardment allowed the unambiguous assignment of levels to 70Br, comprising a total of 32 states built both on the Jπ=0+ ground state and a previously known Jπ=9+ isomer, which is located at an excitation energy of 2293 keV by the observation of linking transitions. The structures are discussed within the context of the two-quasiparticle plus rotor model, the IBM-4 model and the cranked Nilsson-Strutinsky formalism. The nonobservation of a doublet of J=0, T=1 and J=1, T=0 states at low excitation in 70Br is indicative that T=0 proton-neutron pairing strength is weak in comparison to T=1 pairing
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. C, Nuclear Physics
- Journal Volume
- 65
- Journal Issue
- 6
- Journal Page Range
- p. 064307-064307.16
- ISSN
- 0556-2813
- CODEN
- PRVCAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35093959
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ARGON 36 REACTIONS; BROMINE 70; CALCIUM 40 TARGET; CRANKING MODEL; ENERGY LEVELS; GAMMA DECAY; INTERACTING BOSON MODEL; NEUTRONS; PROTONS; SULFUR 32 REACTIONS
- Descriptors DEC
- BARYONS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BROMINE ISOTOPES; DECAY; ELEMENTARY PARTICLES; FERMIONS; HADRONS; HEAVY ION REACTIONS; INTERMEDIATE MASS NUCLEI; ISOTOPES; MATHEMATICAL MODELS; MILLISECONDS LIVING RADIOISOTOPES; NUCLEAR DECAY; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; ODD-ODD NUCLEI; RADIOISOTOPES; SHELL MODELS; TARGETS
Optional Information
- Notes
- (c) 2002 The American Physical Society