Channel coupling effect and important role of imaginary part of coupling potential for high-energy heavy-ion scatterings

T. Furumoto and Y. Sakuragi
Phys. Rev. C 87, 014618 – Published 28 January 2013

Abstract

The recent works by the present authors and their collaborator predicted that the real part of heavy-ion optical potentials changes its character from attraction to repulsion around the incident energy per nucleon E/A= 200–300 MeV on the basis of the complex G-matrix interaction and the double-folding model (DFM) and revealed that the three-body force plays an important role there. In the present paper, we have analyzed the energy dependence of the coupling effect with the microscopic coupled channel (MCC) method and its relation to the elastic and inelastic-scattering angular distributions in detail in the case of the 12C + 12C system in the energy range of E/A= 100–400 MeV. The large channel coupling effect is clearly seen in the elastic cross section although the incident energies are enough high. The dynamical polarization potential (DPP) is derived to investigate the channel coupling effect. Moreover, we analyze the effect of the imaginary part of the coupling potential on elastic and inelastic cross sections.

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  • Received 25 November 2012

DOI:https://doi.org/10.1103/PhysRevC.87.014618

©2013 American Physical Society

Authors & Affiliations

T. Furumoto*

  • RIKEN Nishina Center, Wako, Saitama 351-0198, Japan

Y. Sakuragi

  • Department of Physics, Osaka City University, Osaka 558-8585, Japan and RIKEN Nishina Center, Wako, Saitama 351-0198, Japan

  • *furumoto@ichinoseki.ac.jp; Present address: Ichinoseki National College of Technology, Ichinoseki, Iwate 021-8511, Japan.
  • sakuragi@sci.osaka-cu.ac.jp

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Issue

Vol. 87, Iss. 1 — January 2013

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