Analyticity Constraints for Hadron Amplitudes: Going High to Heal Low Energy Issues

2017/08/25 by V. Mathieu, JPAC Collaboration, Mathieu, V. +16 · 1 citation
Physics and Astronomy · #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #High-Energy Particle Collisions Research

paper · pdf · doi:10.48550/arxiv.1708.07779

Abstract

Analyticity constitutes a rigid constraint on hadron scattering amplitudes. This property is used to relate models in different energy regimes. Using meson photoproduction as a benchmark, we show how to test contemporary low energy models directly against high energy data. This method pinpoints deficiencies of the models and treads a path to further improvement. The implementation of this technique enables one to produce more stable and reliable partial waves for future use in hadron spectroscopy and new physics searches.

Cited by

• High-energy η^(′)π photoproduction and the nature of exotic waves

Related

• Snowmass white paper: Need for amplitude analysis in the discovery of new hadrons
• Generalized distribution amplitudes: new tools to study hadrons' structure and interactions
• Analytic parametrizations of the non-perturbative Pomeron and QCD-inspired models
• The High Energy Behavior of the Forward Scattering Parameters---An Amplitude Analysis Update
• Complete set of observables in pseudo-scalar meson photoproduction -- Controversy solved