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Neutron correlations in 6He viewed through nuclear break-up |
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| Authors: | M. Assié J. A. Scarpaci D. Lacroix J. C. Angélique D. Bazin D. Beaumel Y. Blumenfeld W. N. Catford M. Chabot A. Chatterjee M. Fallot H. Iwasaki F. Maréchal D. Mengoni C. Monrozeau J. Nyberg C. Petrache F. Skaza T. Tuna |
| Affiliation: | 1. Institut de Physique Nucléaire, Université Paris-Sud-11-CNRS/IN2P3, 91406, Orsay, France 2. GANIL, BP 5027, 14076, Caen Cedex 5, France 3. LPC/ENSICAEN, Blvd du Maréchal Juin, 14050, Caen Cedex, France 4. National Superconducting Cyclotron Laboratory, Michigan State University, 48824-1321, East-Lansing, MI, USA 5. School of Electronics and Physical Sciences, University of Surrey, GU2 7XH, Guildford, UK 9. Nuclear Physics Division, Bhabha Atomic Research Centre, 400085, Mumbai, India 6. Subatech, 4 rue Alfred Kastler, BP 20722, F-44307, Nantes Cedex 3, France 7. Dipartimento di Fisica, Università di Camerino and INFN, Sezione di Perugia, I-62032, Camerino, Italy 8. Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden |
| Abstract: | The nuclear break-up of 6He on a 208Pb target was studied at 20A MeV using a secondary beam of 6He produced by the SPIRAL facility at GANIL. $ alpha$ -particles were detected in coincidence with two neutrons with a large angular coverage and the reaction mechanism was identified. From the distribution of the relative angles between the two neutrons the correlation function was extracted. It shows a strong correlation at small relative angles attributed to the contribution of the di-neutron configuration of 6He . |
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