Non-orthogonality effects in heavy-ion transfer reactions

Autor: L.J.B. Goldfarb, V. Managoli, S.J. Singleton
Rok vydání: 1980
Předmět:
Zdroj: Nuclear Physics A. 342:312-334
ISSN: 0375-9474
DOI: 10.1016/0375-9474(80)90258-4
Popis: Calculations are made of the effects arising from the non-orthogonality of channel states in heavy-ion neutron transfer reactions, as well as the associated elastic-scattering processes. A single iteration is performed upon the integral equations associated with the coupled-channel treatment of the transfer process. The reactions considered are 13 C( 16 O, 17 O) 12 C leading to the ground state and first excited state of 17 O and the 29 Si( 16 O, 17 O) 28 Si reaction leading to the first excited state of 17 O. Corrections are found to be as large as 10 % at angles where the cross sections are sizeable. Similar results are obtained for the elastic-scattering processes. The choice of reactions was made so as to emphasise the importance of these corrections. Consideration of the errors associated with the depiction of bound states in terms of a sum of Hankel functions and the use of a local-momentum approximation for the channel motion suggests that the figure for the correction represents an upper bound.
Databáze: OpenAIRE