https://doi.org/10.1140/epja/i2007-10524-1
Regular Article - Theoretical Physics
Two causes of nonlocalities in nucleon-nucleus potentials and their effects in nucleon-nucleus scattering
1
School of Physics, University of Melbourne, Victoria 3010, Melbourne, Australia
2
Department of Physics and Electronics, Rhodes University, 6140, Grahamstown, South Africa
3
Sezione di Padova and Dipartimento di Fisica dell'Università di Padova, Istituto Nazionale di Fisica Nucleare, I-35131, Padova, Italy
4
Department of Physics and Astronomy, University of Manitoba and Winnipeg Institute for Theoretical Physics, R3T 2N2, Winnipeg, Manitoba, Canada
* e-mail: amos@physics.unimelb.edu.au
Received:
13
August
2007
Accepted:
17
January
2008
Published online:
11
February
2008
Two causes of nonlocality inherent in nucleon-nucleus scattering are considered. They are the results of two-nucleon antisymmetry of the projectile with each nucleon in the nucleus and the dynamic polarization potential representation of channel coupling. For energies ∼ 40 -300MeV, a g -folding model of the optical potential is used to show the influence of the knock-out process that is a result of the two-nucleon antisymmetry. To explore the dynamic polarization potential caused by channel coupling, a multichannel algebraic scattering model has been used for low-energy scattering.
PACS: 24.10.-i Nuclear reaction models and methods – / 24.10.Eq Coupled-channel and distorted-wave models – / 24.10.Ht Optical and diffraction models –
© Società Italiana di Fisica and Springer-Verlag, 2008
