The Roper Resonance: Still Controversial 60 Years Later
Abstract
Few baryon resonances have generated as much discussion, even controversy, as the first positive parity excited state with nucleon quantum numbers. We re-examine the issue using insight gained from lattice QCD, complemented by Hamiltonian effective field theory. In doing so, we also examine the distinction between a state that can be naturally described as a quark model state and one that is dynamically generated. Abstract Published by the Jagiellonian University 2026 authors
Fields of Study & Subjects
Quantum Chromodynamics and Particle Interactions
Nuclear physics research studies
Particle physics theoretical and experimental studies
Publication details
- Journal / source
- Acta Physica Polonica B
- Volume
- 57
- Issue
- 2
- Pages
- 1–1
- Publication date
- 10 February 2026
- Language
- EN