Level rearrangement in exotic-atom-like three-body systems
Quantum Gases
2017-09-08 v2 Nuclear Theory
Atomic Physics
Abstract
We study systems of three bosons bound by a long-range interaction supplemented by a short-range potential of variable strength. This generalizes the usual two-body exotic atoms where the Coulomb interaction is modified by nuclear forces at short distances. The energy shift due to the short-range part of the interaction combines two-body terms similar to the ones entering the Trueman-Deser formula, and three-body contributions. A sudden variation of the energy levels is observed near the coupling thresholds of the short-range potential. But the patterns of rearrangement are significantly modified as compared to the two-body case.
Cite
@article{arxiv.1609.09350,
title = {Level rearrangement in exotic-atom-like three-body systems},
author = {Jean-Marc Richard and Claude Fayard},
journal= {arXiv preprint arXiv:1609.09350},
year = {2017}
}
Comments
6 pages, 4 figures, pdflatex, calculations refined, comments and refs. added, to appear in Phys. Lett. A