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arXiv · 2008.01282

Coupled reaction channel study of the 12C(alpha,8Be) reaction, and the 8Be+8Be optical potential

Do Cong Cuong·Pierre Descouvemont·Dao T Khoa·Nguyen Hoang Phuc
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Abstract

Given the established 2 alpha structure of 8Be, a realistic model of 4 interacting alpha clusters must be used to obtain a 8Be+8Be interaction potential. Such a four-body problem poses a challenge for the determination of the 8Be+8Be optical potential (OP) that is still unknown due to the lack of the elastic 8Be+8Be scattering data. The main goal of the present study is to probe the complex 8Be+8Be optical potential in the coupled reaction channel (CRC) study of the alpha transfer 12C(alpha,8Be) reaction measured at 65 MeV, and to obtain the spectroscopic information on the alpha+8Be cluster configuration of 12C. The 3- and 4-body Continuum-Discretized Coupled Channel (CDCC) methods are used to calculate the elastic alpha+8Be and 8Be+8Be scattering at the energy around 16 MeV/nucleon, with the breakup effect taken into account explicitly. Using the CDCC-based OP and alpha spectroscopic factors given by the cluster model calculation, a good CRC description of the alpha transfer data without any adjustment of the (complex) potential strength.

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Do Cong Cuong, Pierre Descouvemont, Dao T Khoa, Nguyen Hoang Phuc. 2020-08-04. Coupled reaction channel study of the 12C(alpha,8Be) reaction, and the 8Be+8Be optical potential. https://arxiv.org/abs/2008.01282

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