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arXiv · 2210.08820

Application of R-matrix and Lagrange-mesh methods to nuclear transfer reactions

Shubhchintak·P. Descouvemont
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Abstract

Background: Nuclear transfer reactions are a useful tool to study the structure of a nucleus. For reactions involving weekly bound nuclei, breakup effects can play significant role and theoretical calculations can be computational expensive in such cases. Purpose: To utilize the Lagrange-mesh and R-matrix methods for nuclear transfer reactions. Methods: We use the adiabatic distorted wave approximation (ADWA) method which can approximately treats the breakup effects in a simpler manner. In our approach, we apply the R-matrix method combining it with the Lagrange-mesh method, which is known to provide the fast and accurate computations. Results: As a test case, we calculate the angular distribution of the cross sections for the 54Fe(d, p)55Fe reaction, where deuteron breakup effects play important role. Conclusions: We show that these methods work well in the ADWA framework, and we look forward to applying these methods in coupled channel calculations.

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Shubhchintak, P. Descouvemont. 2022-10-17. Application of R-matrix and Lagrange-mesh methods to nuclear transfer reactions. https://doi.org/10.15415/jnp.2022.92029

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