53 citations · 130 across the 10 of their papers we have counts for
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Energy shift and decay width of kaonium from coupled-channel one-loop chiral amplitudes
Alireza Beygi
Using two fitted coupled-channel one-loop chiral amplitudes, we investigate the strong-interaction energy shift and decay width of the hypothetical Coulomb-bound hadronic…
Emergence of kaonium as a sharp resonance in photon-photon to meson-meson cross-sections
Alireza Beygi, S. P. Klevansky, R. H. Lemmer
We calculate the binding energies of the hypothetical mesonic atom, (kaonium), using the elastic scattering amplitude. Our findings are in line with…
Thermodynamic properties of non-Hermitian Nambu--Jona-Lasinio models
Alexander Felski, Alireza Beygi, S. P. Klevansky
We investigate the impact of non-Hermiticity on the thermodynamic properties of interacting fermions by examining bilinear extensions to the dimensional -symmetric Nam…
Non-Hermitian extension of the Nambu--Jona-Lasinio model in 3+1 and 1+1 dimensions
Alexander Felski, Alireza Beygi, S. P. Klevansky
This paper presents a non-Hermitian PT-symmetric extension of the Nambu--Jona-Lasinio (NJL) model of quantum chromodynamics in 3+1 and 1+1 dimensions. In 3+1 dimensions, the SU(2)-…
Continuous quantum phase transition in the fermionic mass solutions of the Nambu-Jona-Lasinio model
Alireza Beygi, S. P. Klevansky, R. H. Lemmer
Recently quantum simulators have been constructed to investigate experimentally the most prominent theoretical four-point many-body system described by the Hubbard model. By varyin…