Two-proton knockout from {sup 32}Mg: Intruder amplitudes in {sup 30}Ne and implications for the binding of {sup 29,31}F

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.041302· OSTI ID:21388898

Fallon, P; Macchiavelli, A O; Clark, R M; Cromaz, M; Lee, I Y; Wiedeking, M ^[1]; Rodriguez-Vieitez, E ^[1]; 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 ^[2]; Tostevin, J A ^[3]

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1. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
2. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
3. Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH (United Kingdom)

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.

• OSTI ID: 21388898
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 4; Other Information: DOI: 10.1103/PhysRevC.81.041302; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

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