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The inversion of the Lorentz integral transform with controlled resolution

Winfried Leidemann, Victor D. Efros, Veronica Yu. Shalamova

SciPost Phys. Proc. 3, 037 (2020) · published 26 February 2020

Proceedings event

24th European Few Body Conference


The Lorentz integral transform (LIT) method is briefly presented. The ill-posedness of the inversion is discussed and it is pointed out that the LIT is an integral transform with a controlled resolution. As application the dipole response of a three-particle system bound in a hypercentral potential is considered. The inversion is performed in two ways, both employ expansions of the response function and of the LIT on a basis set and a transformed basis set, respectively. A previous study of the process under consideration seemed to point to serious problems in the inversion process. In the present work, however, it is shown that the LIT approach can be carried out in a reliable way.

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