Knockout Reactions from p-Shell Nuclei: Tests of Ab Initio Structure Models

Journal Article · Fri Apr 22 00:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.162502· OSTI ID:21550322

Grinyer, G F; Bazin, D; Adrich, P; Obertelli, A; Weisshaar, D ^[1]; Gade, A; Bowen, M D; Brown, B A; Campbell, C M; Cook, J M; Glasmacher, T; McDaniel, S; Siwek, K; Terry, J R ^[1]; Tostevin, J A ^[2]; Navratil, P; Quaglioni, S ^[3]; Wiringa, R B ^[4]

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1. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
2. Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH (United Kingdom)
3. Lawrence Livermore National Laboratory, P.O. Box 808, L-414, Livermore, California 94551 (United States)
4. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Absolute cross sections have been determined following single neutron knockout reactions from {sup 10}Be and {sup 10}C at intermediate energy. Nucleon density distributions and bound-state wave function overlaps obtained from both variational Monte Carlo (VMC) and no core shell model (NCSM) ab initio calculations have been incorporated into the theoretical description of knockout reactions. Comparison to experimental cross sections demonstrates that the VMC approach, with the inclusion of 3-body forces, provides the best overall agreement while the NCSM and conventional shell-model calculations both overpredict the cross sections by 20% to 30% for {sup 10}Be and by 40% to 50% for {sup 10}C, respectively. This study gains new insight into the importance of 3-body forces and continuum effects in light nuclei and provides a sensitive technique to assess the accuracy of ab initio calculations for describing these effects.

• OSTI ID: 21550322
• Journal Information: Physical Review Letters, Vol. 106, Issue 16; Other Information: DOI: 10.1103/PhysRevLett.106.162502; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCURACY
BERYLLIUM 10
BOUND STATE
CARBON 10
CROSS SECTIONS
DENSITY
DISTRIBUTION
KNOCK-OUT REACTIONS
MONTE CARLO METHOD
NEUTRONS
SHELL MODELS
SHELLS
VARIATIONAL METHODS
WAVE FUNCTIONS
ALKALINE EARTH ISOTOPES
BARYONS
BERYLLIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CALCULATION METHODS
CARBON ISOTOPES
DIRECT REACTIONS
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
FERMIONS
FUNCTIONS
HADRONS
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PHYSICAL PROPERTIES
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
YEARS LIVING RADIOISOTOPES