Two-proton knockout from {sup 32}Mg: Intruder amplitudes in {sup 30}Ne and implications for the binding of {sup 29,31}F
Abstract
gamma-ray decays from excited states in {sup 30}Ne and inclusive and exclusive cross sections were measured in the {sup 9}Be({sup 32}Mg,{sup 30}Ne+gamma)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 {sup 32}Mg and {sup 30}Ne. We interpret this reduction as due to large 4p4h amplitudes present in the {sup 30}Ne ground state wave function, but not {sup 32}Mg. Such large intruder components are predicted to help stabilize the heavier fluorine isotopes against neutron emission.
- Authors:
-
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
- Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH (United Kingdom)
- Publication Date:
- OSTI Identifier:
- 21388898
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review. C, Nuclear Physics
- Additional Journal Information:
- Journal Volume: 81; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevC.81.041302; (c) 2010 The American Physical Society; Journal ID: ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 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; 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 REACTIONS; NUCLEI; NUCLEONS; ODD-EVEN NUCLEI; RADIATIONS; RADIOISOTOPES; TARGETS
Citation Formats
Fallon, P, Macchiavelli, A O, Clark, R M, Cromaz, M, Lee, I Y, Wiedeking, M, Rodriguez-Vieitez, E, Department of Nuclear Engineering, University of California, Berkeley, California 94720, Gade, A, Bowen, M, Campbell, C M, Cook, J M, Dinca, D C, Glasmacher, T, McDaniel, S, Ratkiewicz, A, Siwek, K, Terry, J R, Yoneda, K, Brown, B A, Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, and Tostevin, J A. Two-proton knockout from {sup 32}Mg: Intruder amplitudes in {sup 30}Ne and implications for the binding of {sup 29,31}F. United States: N. p., 2010.
Web. doi:10.1103/PHYSREVC.81.041302.
Fallon, P, Macchiavelli, A O, Clark, R M, Cromaz, M, Lee, I Y, Wiedeking, M, Rodriguez-Vieitez, E, Department of Nuclear Engineering, University of California, Berkeley, California 94720, Gade, A, Bowen, M, Campbell, C M, Cook, J M, Dinca, D C, Glasmacher, T, McDaniel, S, Ratkiewicz, A, Siwek, K, Terry, J R, Yoneda, K, Brown, B A, Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, & Tostevin, J A. Two-proton knockout from {sup 32}Mg: Intruder amplitudes in {sup 30}Ne and implications for the binding of {sup 29,31}F. United States. https://doi.org/10.1103/PHYSREVC.81.041302
Fallon, P, Macchiavelli, A O, Clark, R M, Cromaz, M, Lee, I Y, Wiedeking, M, Rodriguez-Vieitez, E, Department of Nuclear Engineering, University of California, Berkeley, California 94720, Gade, A, Bowen, M, Campbell, C M, Cook, J M, Dinca, D C, Glasmacher, T, McDaniel, S, Ratkiewicz, A, Siwek, K, Terry, J R, Yoneda, K, Brown, B A, Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, and Tostevin, J A. 2010.
"Two-proton knockout from {sup 32}Mg: Intruder amplitudes in {sup 30}Ne and implications for the binding of {sup 29,31}F". United States. https://doi.org/10.1103/PHYSREVC.81.041302.
@article{osti_21388898,
title = {Two-proton knockout from {sup 32}Mg: Intruder amplitudes in {sup 30}Ne and implications for the binding of {sup 29,31}F},
author = {Fallon, P and Macchiavelli, A O and Clark, R M and Cromaz, M and Lee, I Y and Wiedeking, M and Rodriguez-Vieitez, E and Department of Nuclear Engineering, University of California, Berkeley, California 94720 and Gade, A and Bowen, M and Campbell, C M and Cook, J M and Dinca, D C and Glasmacher, T and McDaniel, S and Ratkiewicz, A and Siwek, K and Terry, J R and Yoneda, K and Brown, B A and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 and Tostevin, J A},
abstractNote = {gamma-ray decays from excited states in {sup 30}Ne and inclusive and exclusive cross sections were measured in the {sup 9}Be({sup 32}Mg,{sup 30}Ne+gamma)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 {sup 32}Mg and {sup 30}Ne. We interpret this reduction as due to large 4p4h amplitudes present in the {sup 30}Ne ground state wave function, but not {sup 32}Mg. Such large intruder components are predicted to help stabilize the heavier fluorine isotopes against neutron emission.},
doi = {10.1103/PHYSREVC.81.041302},
url = {https://www.osti.gov/biblio/21388898},
journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 4,
volume = 81,
place = {United States},
year = {Thu Apr 15 00:00:00 EDT 2010},
month = {Thu Apr 15 00:00:00 EDT 2010}
}
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