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Experimental evidence of a \(\mathrm{\ensuremath{\nu(1d_{^5\!/_2})^2}}\) component to the 12Be ground state

  • S. D. PainEmail author
  • W. N. Catford
  • N. A. Orr
  • J. C. Angelique
  • N. I. Ashwood
  • V. Bouchat
  • N. M. Clarke
  • N. Curtis
  • M. Freer
  • B. R. Fulton
  • F. Hanappe
  • M. Labiche
  • J. L. Lecouey
  • R. C. Lemmon
  • D. Mahboub
  • A. Ninane
  • G. Normand
  • N. Soić
  • L. Stuttge
  • C. N. Timis
  • J. A. Tostevin
  • J. S. Winfield
  • V. Ziman
ENAM 2004

Abstract.

Data have been obtained on exclusive single neutron knockout cross sections from 12Be to study its ground state structure. Preliminary cross sections for the first (0.32 MeV, \(\ensuremath{^1\!/_2 ^-}\)) and second (1.78 MeV, \(\ensuremath{^5\!/_2 ^+}\), unbound) excited states in 11Be have been obtained, giving evidence of significant admixtures of both \(\ensuremath{\nu(1p_{^1\!/_2})^2}\) and \(\ensuremath{\nu(1d_{^5\!/_2})^2}\) configurations in the ground state of 12Be.

PACS.

27.20.+n 6 ⩽ A ⩽ 19 24.10.-i Nuclear reaction models and methods 25.60.-t Reactions induced by unstable nuclei 25.70.-z Low and intermediate energy heavy-ion reactions 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  • S. D. Pain
    • 1
    Email author
  • W. N. Catford
    • 1
  • N. A. Orr
    • 2
  • J. C. Angelique
    • 2
  • N. I. Ashwood
    • 3
  • V. Bouchat
    • 4
  • N. M. Clarke
    • 3
  • N. Curtis
    • 3
  • M. Freer
    • 3
  • B. R. Fulton
    • 5
  • F. Hanappe
    • 4
  • M. Labiche
    • 6
  • J. L. Lecouey
    • 2
  • R. C. Lemmon
    • 7
  • D. Mahboub
    • 1
  • A. Ninane
    • 8
  • G. Normand
    • 2
  • N. Soić
    • 3
  • L. Stuttge
    • 9
  • C. N. Timis
    • 1
  • J. A. Tostevin
    • 1
  • J. S. Winfield
    • 10
  • V. Ziman
    • 3
  1. 1.Department of PhysicsUniversity of SurreyGuildford, SurreyUK
  2. 2.Laboratoire de Physique CorpusculaireISMRA and Université de Caen, IN2P3-CNRSCaen CedexFrance
  3. 3.School of Physics and AstronomyUniversity of BirminghamEdgbaston, BirminghamUK
  4. 4.Université Libre de BruxellesBruxellesBelgium
  5. 5.Department of PhysicsUniversity of YorkHeslington, YorkUK
  6. 6.University of PaisleyPaisleyUK
  7. 7.CLRC Daresbury LaboratoryDaresbury, WarringtonUK
  8. 8.Institut de PhysiqueUniversité Catholique de LouvainLouvain-la-NeuveBelgium
  9. 9.Institut de Recherche SubatomiqueIN2P3-CNRS/Université de Louis PasteurStrasbourg CedexFrance
  10. 10.Laboratori Nazionali del SudIstituto Nazionale di Fisica NucleareCataniaItaly

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