6 papers
Fine Structure and Decays of Hidden-Strangeness Tetraquarks in the Dynamical Diquark Model
Shahriyar Jafarzade, Richard F. Lebed
We analyze the fine structure and ``fall-apart'' decay patterns of hidden-strangeness tetraquarks within the dynamical diquark model. Several well-established negative-parity reson…
Diabatic Dynamical Diquark Model of Hidden-Strangeness Tetraquarks
Shahriyar Jafarzade, Richard F. Lebed
We generalize our recent analysis of hidden-strangeness tetraquarks within the dynamical diquark model from its adiabatic form (in which each state is described solely by a diquark…
Spin Dependence of Meson Thresholds in the Diabatic Dynamical Diquark Model
Richard F. Lebed
The diabatic dynamical diquark model is designed to unify diquark and molecular approaches for exotic hadrons, by including the effects of di-meson thresholds on fundamental diquar…
Hidden-Strangeness Tetraquarks in the Dynamical Diquark Model
Shahriyar Jafarzade, Richard F. Lebed
The dynamical diquark model describes multiquark exotic hadrons in terms of diquark components nucleated by heavy quarks, and successfully explains multiple features of hidden-char…
Meson-Meson Molecular Binding Potentials in the Diabatic Dynamical Diquark Model
Richard F. Lebed, Steven R. Martinez
Using the diabatic formalism, a rigorous generalization of the Born-Oppenheimer approximation, we study the effects of introducing simple meson-meson molecular potentials to an est…
Poles and Poltergeists in Data
Nils Hüsken, Richard F. Lebed, Ryan E. Mitchell +3
A recent report of events by the BESIII Collaboration suggests the presence of a structure at 3900~MeV\@. We argue that this structure, called i…