Knockout reactions from p-shell nuclei : tests of ab initio structure models.

Journal Article · Fri Apr 22 04:00:00 EDT 2011 · Phys. Rev. Lett.

DOI:https://doi.org/10.1103/PhysRevLett.106.162502· OSTI ID:1019241

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

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1. Physics

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.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC; NSF; United Kingdom Science and Technology Facilities Council; Natural Sciences and Engineering Research Council of Canada
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1019241
• Report Number(s): ANL/PHY/JA-68968
• Journal Information: Phys. Rev. Lett., Journal Name: Phys. Rev. Lett. Journal Issue: 16 ; Apr. 22, 2011 Vol. 106; ISSN 0031-9007
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCURACY
BOUND STATE
CROSS SECTIONS
LIGHT NUCLEI
NEUTRONS
NUCLEI
NUCLEONS
SHELL MODELS
WAVE FUNCTIONS