49 citations · 84 across the 10 of their papers we have counts for
10 papers
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…
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…
Amplitude determination for , and cross-sections for in a chiral model
S. P. Klevansky, R. H. Lemmer, Alireza Beygi
Dai and Pennington have performed a comprehensive analysis of essentially all pion and kaon pair production data from two-photon collisions below 1.5 GeV, including all high statis…
Decay of kaonium in a chiral approach
S P Klevansky, R H Lemmer
The decay of the K+K- hadronic atom kaonium is investigated non-perturbatively using meson-meson interaction amplitudes taken from leading order chiral perturbation theory in an ap…
KKbar molecules with momentum-dependent interactions
R. H. Lemmer
It is shown that the momentum-dependent kaon-antikaon interactions generated via vector meson exchange from the standard SU_V(3) x SU_A(3) interaction Lagrangian lead to a non-loca…
Calculation of the two-photon decay width of the f_0(980) scalar meson
R. H. Lemmer
The applicability of the quasi-static approximation for calculating the two-photon annihilation rate of the scalar f_0(980) meson envisaged as a K\bar K molecule is critically re-e…