Single-neutron transfer from 11Begs via the (p, d) reaction with a radioactive beam

J.S. Winfield, S. Fortier, W.N. Catford, S. Pita, N.A. Orr, J. Van de Wiele, Y. Blumenfeld, R. Chapman, S.P.G. Chappell, N.M. Clarke, N. Curtis, M. Freer, S. Gales, H. Langevin-Joliot, H. Laurent, I. Lhenry, J.M. Maison, P. Roussel-Chomaz, M. Shawcross, K. SpohrT. Suomijarvi, A. de Vismes

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104 Citations (Scopus)


The 11Be(p, d)10Be reaction has been performed in inverse kinematics with a radioactive 11Be beam of E/A=35.3 MeV. Angular distributions for the 0+ ground state, the 2+, 3.37 MeV state and the multiplet of states around 6 MeV in 10Be were measured at angles up to 16°cm by detecting the 10Be in a dispersion-matched spectrometer and the coincident deuterons in a silicon array. Distorted wave and coupled-channels calculations have been performed to investigate the amount of 2+ core excitation in 11Begs. The use of “realistic” 11Be wave functions is emphasised and bound-state form factors have been obtained by solving the particle-vibration coupling equations. This calculation gives a dominant 2s component in the 11Begs wave function with a 16% [2+⊗1d] core excitation admixture. Cross sections calculated with these form factors are in good agreement with the present data. The Separation Energy prescription for the bound-state wave function also gives satisfactory fits to the data, but leads to a significantly larger [2+⊗1d] component in 11Begs.
Original languageEnglish
Pages (from-to)48-78
Number of pages31
JournalNuclear Physics A
Issue number1-4
Publication statusPublished - 26 Feb 2001


  • Nuclear reactions
  • 1H(11Be, 10Be), E/A = 35.3 MeV, 1H(15N, 14N) E/A = 38.9 MeV
  • Measured σ(θ)
  • Deduced spectroscopic factors
  • Vibrational coupling model
  • Radioactive beam


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