Four Sorts of Mesons
Abstract
This report reviews the extensive spectrum of light non-strange qbar-q states up to a mass of 2400 MeV from Crystal Barrel and PS172 data on pbar-p -> Resonance -> A + B in 17 final states. For I=0, C=+1, the spectrum is complete and very secure. Glueball candidates fo(1500), fo(2100), f2(1950) and eta(2190) are reviewed and also hybrid candidates eta2(1870) and pi2(1880). A fourth category of anomalously light 0+ mesons is made of sigma(540), kappa(750), a0(980) and f0(980).
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.