| Issue |
EPJ Web Conf.
Volume 270, 2022
QCD@Work 2022 - International Workshop on Quantum Chromodynamics - Theory and Experiment
|
|
|---|---|---|
| Article Number | 00018 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.1051/epjconf/202227000018 | |
| Published online | 17 November 2022 | |
https://doi.org/10.1051/epjconf/202227000018
Semirelativistic Potential Modelling of Bound States: Advocating Due Rigour
Institute for High Energy Physics, Austrian Academy of Sciences, Nikolsdorfergasse 18, A-1050 Vienna, Austria
* e-mail: Wolfgang.Lucha@oeaw.ac.at
Published online: 17 November 2022
The Poincaré-covariant quantum-field-theoretic description of bound states by the homogeneous Bethe–Salpeter equation usually exhibits an intrinsic complexity that can be attenuated by allowing this formalism to undergo various simplifications. The resulting approximate outcome’s reliability can be assessed by applying several rigorous constraints on the nature of the bound-state spectra; most prominent here are existence, number and location of discrete eigenvalues.
© The Authors, published by EDP Sciences, 2022
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