Determination of S-factors with the LIT method

TL;DR

This paper demonstrates how the Lorentz integral transform (LIT) method can accurately determine astrophysical S-factors, exemplified by the proton-deuteron radiative capture, highlighting the importance of the many-body basis in calculations.

Contribution

It introduces the application of the LIT method to calculate astrophysical S-factors, emphasizing the role of the many-body basis for improved accuracy.

Findings

LIT method effectively determines astrophysical S-factors.

The choice of many-body basis significantly impacts results.

Test case shows excellent agreement with expected values.

Abstract

The precise determination of astrophysical S-factors is essential for a detailed understanding of the nucleosynthesis in its various facets. It is discussed how the Lorentz integral transform (LIT) method can be applied for such a determination. The astrophysical S-factor for the proton-deuteron radiative capture is considered as test case. The importance of a specific many-body basis used for the LIT equation solution is pointed out. The excellent results of the test are discussed.