The last two decades have witnessed the discovery of a myriad of new and unexpected
hadrons. The future holds more surprises for us, thanks to new-generation experiments …

Quantum chromodynamics, the theory of the strong force, describes interactions of coloured
quarks and gluons and the formation of hadronic matter. Conventional hadronic matter …

Despite decades of research, we still lack a detailed quantitative understanding of the way
quantum chromodynamics (QCD) generates the spectrum of hadrons. Precise experimental …

A bstract We study the transition form factors (TFFs) of axial-vector mesons in the context of
currently available experimental data, including new constraints from e+ e−→ f 1 (1285) π+ …

Resonant hadronic systems often exhibit a complicated decay pattern in which three-body
dynamics play a relevant or even dominant role. In this work we focus on the a 1 (1260) …

Two methodologies have been presented in the literature which connect relativistic three-
particle scattering amplitudes with lattice QCD spectra—the “relativistic effective field theory” …

We perform a systematic analysis of the\(J/\psi\rightarrow\gamma\pi^ 0\pi^ 0\)
and\(\rightarrow\gamma K_S^ 0 K_S^ 0\) partial waves measured by BESIII. We use a large …

We present a simple scheme for solving relativistic integral equations for the partial-wave
projected three-body amplitudes. Our techniques are used to solve a problem of three scalar …

Masses, widths, and branching ratios of hadronic resonances are quantified by their pole
positions and residues with respect to transition amplitudes on the Riemann sheets of the …

Three-body dynamics above threshold is required for the reliable extraction of many
amplitudes and resonances from experiment and lattice QCD. The S-matrix principle of …