Published April 2010
| Version v1
Journal article
Two-proton knockout from 32Mg: Intruder amplitudes in 30Ne and implications for the binding of 29,31F
Creators
- Fallon, P.1
- Macchiavelli, A. O.1
- Clark, R. M.1
- Cromaz, M.1
- Lee, I. Y.1
- Wiedeking, M.1
- Rodriguez-Vieitez, E.2, 1
- Gade, A.3, 4
- Bowen, M.3, 4
- Campbell, C. M.3, 4
- Cook, J. M.3, 4
- Dinca, D. C.3, 4
- Glasmacher, T.3, 4
- McDaniel, S.3, 4
- Ratkiewicz, A.3, 4
- Siwek, K.3, 4
- Terry, J. R.3, 4
- Yoneda, K.3, 4
- Brown, B. A.3, 4
- Tostevin, J. A.5
- and others
- 1. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- 2. Department of Nuclear Engineering, University of California, Berkeley, California 94720 (United States)
- 3. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
- 4. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
- 5. Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH (United Kingdom)
Description
γ-ray decays from excited states in 30Ne and inclusive and exclusive cross sections were measured in the 9Be(32Mg,30Ne+γ)X two-proton knockout reaction at incident beam energies of 99.7 and 86.7 MeV/nucleon. The measured cross section is suppressed compared to calculations and is indicative of a reduced overlap of initial and final state wave functions in 32Mg and 30Ne. We interpret this reduction as due to large 4p4h amplitudes present in the 30Ne ground state wave function, but not 32Mg. Such large intruder components are predicted to help stabilize the heavier fluorine isotopes against neutron emission.
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. C, Nuclear Physics
- Journal Volume
- 81
- Journal Issue
- 4
- Journal Page Range
- p. 041302-041302.5
- ISSN
- 0556-2813
- CODEN
- PRVCAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41117641
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- AMPLITUDES; BEAMS; BERYLLIUM 9 TARGET; CROSS SECTIONS; EXCITED STATES; FLUORINE 29; FLUORINE 31; GAMMA DECAY; GAMMA RADIATION; GROUND STATES; KNOCK-OUT REACTIONS; MAGNESIUM 32; MEV RANGE 10-100; NEON 30; NEUTRON EMISSION; NUCLEAR DECAY; PROTONS; SIMULATION; WAVE FUNCTIONS
- Descriptors DEC
- ALKALINE EARTH ISOTOPES; BARYONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DECAY; DIRECT REACTIONS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; EMISSION; ENERGY LEVELS; ENERGY RANGE; EVEN-EVEN NUCLEI; FERMIONS; FLUORINE ISOTOPES; FUNCTIONS; HADRONS; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; MAGNESIUM ISOTOPES; MEV RANGE; NANOSECONDS LIVING RADIOISOTOPES; NEON ISOTOPES; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; ODD-EVEN NUCLEI; RADIATIONS; RADIOISOTOPES; TARGETS
Optional Information
- Notes
- (c) 2010 The American Physical Society