Résumé : The elastic scattering 4He(6He,6He)4He has been investigated at center-of-mass energies of 11.6 and 15.9 MeV. Differential cross sections are determined using a post-accelerated 6He (T1/2 = 0.807s) beam in the center-of-mass angular range between 50 and 140 degrees. The comparison of the measured data with calculations using a double folding potential shows evidence for the 2n-transfer process in the 4He(6He,6He)4 He elastic scattering. © 1999 Published by Elsevier Science B.V. All rights reserved.