Elastic and Inelastic Alpha Transfer in the 1616O+1212C Scattering

Nguyen Tri Toan Phuc, Nguyen Hoang Phuc, Dao Tien Khoa
Author affiliations

Authors

  • Nguyen Tri Toan Phuc Department of Nuclear Physics, Faculty of Physics and Engineering Physics,University of Science, Ho Chi Minh City, Vietnam
  • Nguyen Hoang Phuc Institute for Nuclear Science and Technology
  • Dao Tien Khoa Institute for Nuclear Science and Technology, VINATOM

DOI:

https://doi.org/10.15625/0868-3166/16002

Keywords:

optical potential, coupled reaction channels, inelastic $\alpha$ transfer

Abstract

The elastic scattering cross section measured at energies E10 MeV/nucleon for some light heavy-ion systems having two identical cores like 16O+12C exhibits an enhanced oscillatory pattern at the backward angles. Such a pattern is known to be due to the transfer of the valence nucleon or cluster between the two identical cores. In particular, the elastic α transfer has been shown to originate directly from the core-exchange symmetry in the elastic 16O+12C scattering. Given the strong transition strength of the $2^+_1$ state of $^{12}$C and its large overlap with the $^{16}$O ground state, it is natural to expect a similar α transfer process (or inelastic α transfer) to take place in the inelastic 16O+12C scattering. The present work provides a realistic coupled channel description of the α transfer in the inelastic 16O+12C scattering at low energies. Based on the results of the 4 coupled reaction-channels calculation, we show a significant contribution of the α transfer to the inelastic 16O+12C scattering cross section at the backward angles. These results suggest that the explicit coupling to the α transfer channels is crucial in the studies of the elastic and inelastic scattering of a nucleus-nucleus system with the core-exchange symmetry.

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Published

09-07-2021

How to Cite

[1]
N. T. T. Phuc, N. H. Phuc, and D. T. Khoa, “Elastic and Inelastic Alpha Transfer in the 16O+12C Scattering”, Comm. Phys., vol. 31, no. 4, p. 425, Jul. 2021.

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Papers
Received 12-04-2021
Accepted 11-05-2021
Published 09-07-2021