Radiative Proton Capture on <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>6</mn></mrow></msup></mrow><mi>He</mi></math></span>

E. Sauvan; F. M. Marqués; H. W. Wilschut; N. A. Orr; J. C. Angélique; C. Borcea; W. N. Catford; N. M. Clarke; P. Descouvemont; J. Díaz; S. Grévy; A. Kugler; V. Kravchuk; M. Labiche; C. Le Brun; E. Lienard; H. Löhner; W. Mittig; R. W. Ostendorf; S. Pietri; P. Roussel-Chomaz; M. G. Saint Laurent; H. Savajols; V. Wagner; N. Yahlali

doi:10.1103/PhysRevLett.87.042501

Radiative Proton Capture on $^{6} He$

E. Sauvan, F. M. Marqués, H. W. Wilschut, N. A. Orr, J. C. Angélique, C. Borcea, W. N. Catford, N. M. Clarke, P. Descouvemont, J. Díaz, S. Grévy, A. Kugler, V. Kravchuk, M. Labiche, C. Le Brun, E. Lienard, H. Löhner, W. Mittig, R. W. Ostendorf, S. Pietri, P. Roussel-Chomaz, M. G. Saint Laurent, H. Savajols, V. Wagner, and N. Yahlali

Phys. Rev. Lett. 87, 042501 – Published 3 July 2001

Abstract

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 $^{6} He (p, γ)$ at 40 MeV. Capture into $^{7} Li$ is observed as the strongest channel. In addition, events have been recorded that may be described by quasifree capture on a halo neutron, the $α$ core, and $^{5} He$ . The possibility of describing such events by capture into the continuum of $^{7} Li$ is also discussed.

Received 20 February 2001

DOI:https://doi.org/10.1103/PhysRevLett.87.042501

Authors & Affiliations

E. Sauvan^1,*, F. M. Marqués^1,†, H. W. Wilschut², N. A. Orr¹, J. C. Angélique¹, C. Borcea³, W. N. Catford⁴, N. M. Clarke⁵, P. Descouvemont⁶, J. Díaz⁷, S. Grévy¹, A. Kugler⁸, V. Kravchuk², M. Labiche^1,‡, C. Le Brun^1,§, E. Lienard¹, H. Löhner², W. Mittig⁹, R. W. Ostendorf², S. Pietri¹, P. Roussel-Chomaz⁹, M. G. Saint Laurent⁹, H. Savajols⁹, V. Wagner⁸, and N. Yahlali⁷

¹Laboratoire de Physique Corpusculaire, IN2P3-CNRS, ISMRA et Université de Caen, F-14050 Caen Cedex, France
²Kernfysich Versneller Instituut, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands
³IFIN-HH, P.O. Box MG-6, R0-76900 Bucharest-Magurele, Romania
⁴Department of Physics, University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom
⁵School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom
⁶Université Libre de Bruxelles, CP 229, B-1050 Bruxelles, Belgium
⁷Instituto de Física Corpuscular, E-46100 Burjassot, Spain
⁸Nuclear Physics Institute, C7-25068 Řež u Prahy, Czech Republic
⁹GANIL, CEA/DSM-CNRS/IN2P3, BP 55027, F-14076 Caen Cedex, France

^*Present address: ISOLDE, CERN, Switzerland.
^†Email address: Marques@caelav.in2p3.fr
^‡Present address: University of Paisley, Scotland.
^§Present address: ISN, Grenoble, France.