ELASTIC AND INELASTIC ALPHA TRANSFER IN THE 16O+12C SCATTERING

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/10.15625/0868-3166/2021/16002

Keywords:

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

Abstract

The elastic scattering cross section measured at energies $E\lesssim 10$ MeV/nucleon for some light heavy-ion systems having two identical cores like \oc 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 $\alpha$ transfer has been shown to originate directly from the core-exchange symmetry in the elastic \oc 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 $\alpha$ transfer process (or inelastic $\alpha$ transfer) to take place in the inelastic \oc scattering. The present work provides a realistic coupled channel description of the $\alpha$ transfer in the inelastic \oc scattering at low energies. Based on the results of the 4 coupled reaction-channels calculation, we show a significant contribution of the $\alpha$ transfer to the inelastic \oc scattering cross section at the backward angles. These results suggest that the explicit coupling to the $\alpha$ transfer channels is crucial in the studies of the elastic and inelastic scattering of a nucleus-nucleus system with the core-exchange symmetry.\Keywords{optical potential, coupled reaction channels, inelastic $\alpha$ transfer

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Published

09-07-2021

How to Cite

Phuc, N. T. T., Phuc, N. H., & Khoa, D. T. (2021). ELASTIC AND INELASTIC ALPHA TRANSFER IN THE 16O+12C SCATTERING. Communications in Physics, 31(4). https://doi.org/10.15625/0868-3166/2021/16002