Measurement of the 4He(6He, 6He)4He cross section with a 4He-implanted Al target

✍ Scribed by R. Raabe; L. Weissman; A. Andreyev; C. Angulo; D. Baye; W. Bradfield-Smith; S. Cherubini; T. Davinson; P. Descouvemont; A. Di Pietro; M. Huyse; A.M. Laird; W.F. Mueller; A. Musumarra; A. Ostrowski; A. Piechaczek; A. Shotter; G. Terwagne; P. Van Duppen; A. Wöhr

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 71 KB
• Volume: 701
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(01)01616-5

✦ Synopsis

In order to obtain information on a possible two-neutron component in the 6 He wavefunction, we investigated the 4 He( 6 He, 6 He) 4 He elastic scattering at beam energies of 29.1, 29.6 and 40 MeV and at center-of-mass angles between 20 and 163 degrees. The experiments were performed at the ARENAS 3 Radioactive Ion Beam Facility in Louvain-La-Neuve. We used a 4 He-implanted aluminium foil as a target. A 4 He thickness of about 2-3 × 10 17 particles/cm 2 was obtained implanting 4 He nuclei at energies between 20 and 80 keV in 0.7-µm-thick foils. Data collected in a larger angular range than previous measurements give additional evidence for the 2n-transfer process to take place in the 4 He( 6 He, 6 He) 4 He scattering. Our results demonstrate the possibility of * Corresponding author.