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Physical Review Letters 101 (2008) 032701
1n- and 2n-transfer with the Borromean nucleus $^{6}$He near the Coulomb barrier
A. Chatterjee1, 2, A. Navin1, A. Shrivastava2, S. Bhattacharyya1, M. Rejmund1, N. Keeley3, 4, V. Nanal5, J. Nyberg6, R.G. Pillay5, K. Ramachandran2, I. Stefan1, D. Bazin7, D. Beaumel8, Y. Blumenfeld8, G. De France1, D. Gupta8, M. Labiche9, A. Lemasson1, R. Lemmon9, R. Raabe1, J.A. Scarpaci8, C. Simenel3, C. Timis10
SPIRAL Collaboration(s)
(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 particles, neutrons and characteristic rays from the target-like 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/1n cross section and the strong influence of 2n-transfer on other channels indicate that the di-neutron configuration of 6He plays a dominant role in the reaction mechanism.
1 :  GANIL - Grand Accélérateur National d'Ions Lourds
2 :  Nuclear Physics Division
3 :  IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)
4 :  Department of Nuclear Reactions
5 :  DNAP
6 :  Department of Physics and Astronomy
7 :  National Superconducting Cyclotron Laboratory
8 :  IPNO - Institut de Physique Nucléaire d'Orsay
9 :  CCLRC
10 :  Department of Physics
Physique/Physique Nucléaire Expérimentale
Détecteur EXOGAM – Unstable nucleus induced transfer reactions – Direct nuclear reactions – Heavy ion-induced fusion and fusion-fission reactions – Properties of nuclei with 6≤A≤19
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