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Physical Review Letters 87 (2001) 042501
Radiative proton capture on $^6$He
E. Sauvan1, F.M. Marqués1, H. W. Wilschut, N.A. Orr1, J.C. Angélique1, C. Borcea, W. N. Catford, N. M. Clarke, P. Descouvemont, J. Diaz, S. Grévy1, A. Kugler, V. Kravchuk, M. Labiche1, C. Le Brun1, E. Liénard1, H. Löhner, W. Mittig2, R. W. Ostendorf, S. Piétri1, P. Roussel-Chomaz2, M.G. Saint Laurent2, H. Savajols2, V. Wagner, N. Yahlali

Radiative capture of protons is investigated as a probe of clustering in nuclei far from stability. The first such measurement on a halo nucleus is reported here for the reaction $^6$He(p,$\gamma$) at 40 MeV. Capture into $^7$Li is observed as the strongest channel. In addition, events have been recorded that may be described by quasi-free capture on a halo neutron, the $\alpha$ core and $^5$He. The possibility of describing such events by capture into the continuum of $^7$Li is also discussed.
1 :  LPCC - Laboratoire de Physique Corpusculaire de Caen
2 :  GANIL - Grand Accélérateur National d'Ions Lourds
Structure nucléaire
Physique/Physique Nucléaire Expérimentale
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