Published November 2005
| Version v1
Journal article
Two-proton radioactivity studies with 45Fe and 48Ni
Creators
- 1. CENBG, Le Haut Vigneau, B.P.120, F-33175 Gradignan Cedex (France)
- 2. Grand Accelerateur National d'Ions Lourds, B.P.5027, F-14076 Caen Cedex (France)
- 3. Instituut voor Kern- en Stralingsfysica, Celetijnenlaan 200D, B-3001 Leuven (Belgium)
- 4. Faculte de Physique, USTHB, B.P.32, El Alia, 16111 Bab Ezzouar, Alger (Algeria)
- 5. Institute of Atomic Physics, P.O. Box MG6, Bucharest-Margurele (Romania)
- 6. Departamento de Fisica de Particulas, Universidad de Santiago de Compostela, E-15782 Santiago de Compostela (Spain)
- 7. Institut de Physique Nucleaire d'Orsay, 15 rue Georges Clemenceau, F-91406 Orsay Cedex (France)
- 8. Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321 (United States)
- 9. Flerov Laboratory of Nuclear Reactions, JINR, RU-141980 Dubna (Russian Federation)
Description
In an experiment at the SISSI/LISE3 facility of GANIL, we have studied the decay of the two proton-rich nuclei 45Fe and 48Ni. We identified 30 implantations of 45Fe and observed for the second time four implantation events of 48Ni. In 17 cases, 45Fe decays by two-proton emission with a decay energy of 1.154(16) MeV and a half-life of T1/2=1.6-0.3+0.5 ms. The observation of 48Ni and of its decay allows us to deduce a half-life of T1/2=2.1-0.7+2.1 ms. One out of four decay events is completely compatible with two-proton radioactivity and may therefore indicate that 48Ni has a two-proton radioactivity branch. We discuss all information now available on two-proton radioactivity for 45Fe and 48Ni and compare it to theoretical models
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. C, Nuclear Physics
- Journal Volume
- 72
- Journal Issue
- 5
- Journal Page Range
- p. 054315-054315.7
- ISSN
- 0556-2813
- CODEN
- PRVCAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37015122
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- COMPARATIVE EVALUATIONS; GANIL CYCLOTRON; HALF-LIFE; IRON 45; MEV RANGE; NEUTRON-DEFICIENT ISOTOPES; NICKEL ISOTOPES; PROTON-EMISSION DECAY; PROTONS
- Descriptors DEC
- ACCELERATORS; BARYONS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; CYCLIC ACCELERATORS; CYCLOTRONS; DECAY; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; ENERGY RANGE; EVALUATION; EVEN-ODD NUCLEI; FERMIONS; HADRONS; HEAVY ION ACCELERATORS; INTERMEDIATE MASS NUCLEI; IRON ISOTOPES; ISOCHRONOUS CYCLOTRONS; ISOTOPES; MILLISECONDS LIVING RADIOISOTOPES; NUCLEAR DECAY; NUCLEI; NUCLEONS; PROTON DECAY RADIOISOTOPES; RADIOISOTOPES
Optional Information
- Notes
- (c) 2005 The American Physical Society