9 papers · 1 filter
S-matrix informed neural networks for amplitude analysis
Wyatt A. Smith, Arkaitz Rodas, Marius D. Thomas +5
Reconstructing scattering amplitudes from finite, noisy, and mutually inconsistent measurements is an ill-posed inverse problem common to many reactions relevant to particle physic…
Neuro-dispersive extractions of light-meson resonances
Wyatt A. Smith, Arkaitz Rodas, Marius D. Thomas +5
We present the first dispersive extraction of resonant poles from analytically continued neural networks. We use S-matrix informed neural networks (SINNs) trained to respect unitar…
High-energy photoproduction and the nature of exotic waves
Gloria Montaña, Vincent Mathieu, Vanamali Shastry +9
The observation of hybrid mesons in photoproduction experiments can provide essential insight into the inner workings of quantum chromodynamics in the strong coupling regime. In pa…
Revisiting gauge invariance and Reggeization of pion exchange
Gloria Montana, Daniel Winney, Lukasz Bibrzycki +10
The Reggeized pion is expected to provide the main contribution to the forward cross section in light meson photoproduction reactions with charge exchange at high energies. We disc…
Studying photoproduction beyond Pomeron exchange
Łukasz Bibrzycki, Nadine Hammoud, Vincent Mathieu +10
Forward photoproduction of pairs with invariant mass of the order of MeV is traditionally understood to be produced via Pomeron exchange. Based on a detailed…
Nonperturbative aspects of the electromagnetic pion form factor at high energies
Joint Physics Analysis Center, :, K. Quirion +10
The structure of hadronic form factors at high energies and their deviations from perturbative quantum chromodynamics provide insight on nonperturbative dynamics. Using an approach…