2016/05/31 by A. V. Anisovich, V. V. Anisovich, M. A. Matveev +3
Physics and Astronomy · #Degrees of freedom (physics and chemistry) #Dispersion relation #Hadron #Meson #Nuclear physics research studies #Particle decay #Propagator #Quantum Chromodynamics and Particle Interactions #Quantum and Classical Electrodynamics #Resonance (particle physics) #Spins #hep-ph
paper · pdf · doi:10.1142/s0217751x16501244
published as International Journal of Modern Physics A 2 Vol. 31 (2016) 1650124 (22 pages)
openalex created_date 2016/06/24 · arxiv created 2016/08/09 · arxiv updated 2016/08/16 · openalex publication_date 2016/08/20 · openalex updated_date 2026/08/05
Hadronic resonance propagators which take into account the analytical properties of decay processes are built in terms of the dispersion relation technique. Such propagators can describe multi-component systems, for example, those when quark degrees of freedom create a resonance state, and decay products correct the corresponding pole by adding hadronic deuteron-like components. Meson and baryon states are considered, examples of particles with different spins are presented.