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Physical Review Letters 103 (2009) 232701 (4 pages)
Modern Rutherford experiment: Tunneling of the most neutron-rich nucleus
A. Lemasson1, A. Shrivastava1, 2, A. Navin1, M. Rejmund1, N. Keeley3, V. Zelevinsky4, S. Bhattacharyya5, A. Chatterjee2, G. De France1, B. Jacquot1, V. Nanal6, R.G. Pillay6, R. Raabe1, C. Schmitt1
(2009)

A modern variation of the Rutherford experiment to probe the tunneling of exotic nuclear matter from the measurement of the residues formed in the bombardment of 197Au by extremely neutronrich 8He nuclei is presented. Using a novel off-beam technique the most precise and accurate measurements of fusion and neutron transfer involving re-accelerated unstable beams are reported. The results show unusual behavior of the tunneling of 8He compared to that for lighter helium isotopes, highlighting the role of the intrinsic structure of composite many-body quantum systems and pairing correlations.
1 :  GANIL - Grand Accélérateur National d'Ions Lourds
2 :  Nuclear Physics Division
3 :  Department of Nuclear Reactions
4 :  National Superconducting Cyclotron Laboratory
5 :  Variable Energy Cyclotron Centre
6 :  Department of Nuclear and Atomic Physics
Physique/Physique Nucléaire Expérimentale
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