Coupled-channels analysis of 58Ni+124Sn reactions

Phys. Rev. C 57, 2401 – Published 1 May 1998
H. Esbensen, C. L. Jiang, and K. E. Rehm

Abstract

Measurements of multineutron transfer reactions in 58Ni+124Sn collisions are analyzed in a simplified coupled-channels model. Successive one-neutron and direct two-neutron transfer couplings are included explicitly, together with 2+ and 3- excitations of projectile and target. Capture reactions, i.e., fusion and deep-inelastic reactions, are described by ingoing-wave boundary conditions. Quasielastic charged-particle transfer reactions are not treated explicitly but are simulated by a weak imaginary potential. The model provides a comprehensive description of the measured reaction and elastic scattering data, from far below to well above the Coulomb barrier. We find that subbarrier capture rates are enhanced by couplings to neutron transfer channels but the enhancement is not as large as caused by couplings to low-lying surface modes.

DOI: http://dx.doi.org/10.1103/PhysRevC.57.2401

  • Received 11 December 1997
  • Published in the issue dated May 1998

© 1998 The American Physical Society

Authors & Affiliations

H. Esbensen, C. L. Jiang, and K. E. Rehm

  • Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

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