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Similarity between nuclear rainbow and meteorological rainbow: Evidence for nuclear ripples

S. Ohkubo and Y. Hirabayashi
Phys. Rev. C 89, 061601(R) – Published 27 June 2014

Abstract

We present evidence for the nuclear ripples superimposed on the Airy structure of the nuclear rainbow, which is similar to the meteorological rainbow. The mechanism of the nuclear ripples is also similar to that of the meteorological rainbow, which is caused by the interference between the externally reflective waves and refractive waves. The nuclear ripple structure was confirmed by analyzing the elastic angular distribution in O16+C12 rainbow scattering at EL=115.9 MeV using the coupled channels method by taking account of coupling to the excited states of C12 and O16 with a double folding model derived from a density-dependent effective nucleon-nucleon force with realistic wave functions for C12 and O16. The coupling to the excited states plays the role of creating the external reflection.

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  • Received 14 May 2014
  • Revised 10 June 2014

DOI:https://doi.org/10.1103/PhysRevC.89.061601

©2014 American Physical Society

Authors & Affiliations

S. Ohkubo1,* and Y. Hirabayashi2

  • 1Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
  • 2Information Initiative Center, Hokkaido University, Sapporo 060-0811, Japan

  • *ohkubo@yukawa.kyoto-u.ac.jp

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Issue

Vol. 89, Iss. 6 — June 2014

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