Document is current

Article History

Received: 21 January 2026

Accepted: 23 March 2026

First Online: 5 April 2026

Declarations

:

: The authors declare no competing interests.

: Krishna Kingkar Pathak conceived the study, developed the theoretical framework, and performed all analytical and numerical calculations. He carried out the implementation of the second-order Dalgarno-Lewis formalism, analyzed the results, and interpreted them from a few-body perspective. He also prepared all figures and tables and wrote the manuscript, including the Supplemental Material.

: The numerical data underlying the results presented in this study, including evaluated radial moments and derived observables, are provided in the accompanying Supplemental Material. The figures shown in the main text were generated directly from these data.