Are all hadrons alike?

V. A. Novikov, M. A. Shifman, A. I. Vainshtein, V. I. Zakharov

Research output: Contribution to journalArticlepeer-review

553 Scopus citations

Abstract

Using the existing knowledge of the chromodynamic vacuum as a basis we investigate mesons built from u, d, s quarks and/or gluons. A new classification of hadrons is proposed which reflects the strength of interaction of various currents with vacuum fields. It is found that the mass scale intrinsic to the resonance structures in different channels is not universal; a large mass scale is discovered, for instance, in the 0-, 0+ gluonic channels. Starting from our classification we establish the hierarchy of scales. Regularities of the hadronic phenomenology [Zweig's selection rule, approximate SU(6) symmetry and so on] are naturally explained. The properties of glueballs are discussed in some detail. A few low-energy theorems are derived, which imply, in particular, a new mass relation for the η′ meson.

Original languageEnglish (US)
Pages (from-to)301-369
Number of pages69
JournalNuclear Physics, Section B
Volume191
Issue number2
DOIs
StatePublished - Nov 16 1981

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