Evidence of projectile polarisation effects on the reaction 208Pb( 17O, 16O) 209Pb

Abstract

Listen

Translate article

Abstract Coupled reaction channels calculations (CRC) of the reactions 208 Pb( 17 O, 16 O) 209 Pb leading to different states of 209 Pb are compared with DWBA predictions at projectile energies of 78, 86 and 102 MeV. The calculations exhibit strong effects of multistep processes on Q -value and angular-momentum-mismatched transfer reactions. It is shown that the contribution to the transfer through the inelastic excitation of 17 O contains a major part of the multistep effect. A simple three-channel model comprising the elastic, inelastic and transfer channels is constructed which simulates the CRC effects on the transfer cross sections. The polarization effects of the eliminated channels give rise to effective potentials which are mainly imaginary.