Phys. Rev. Lett. 101, 032701 (2008) [4 pages]1n and 2n Transfer With the Borromean Nucleus 6He Near the Coulomb BarrierReceived 20 February 2008; published 16 July 2008 Angular distributions for 1n and 2n transfer are reported for the 6He+65Cu system at Elab=22.6 MeV. For the first time, triple coincidences between α particles, neutrons, and characteristic γ rays from the targetlike residues were used to separate the contributions arising from 1n and 2n transfer. The differential cross sections for these channels, elastic scattering, and fusion were analyzed using a coupled reaction channels approach. The large measured ratio of the 2n-to-1n cross section and the strong influence of 2n transfer on other channels indicate that the dineutron configuration of 6He plays a dominant role in the reaction mechanism. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.032701
DOI:
10.1103/PhysRevLett.101.032701
PACS:
25.60.Je, 24.50.+g, 25.70.Jj, 27.20.+n
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