Instatons, the quark model, and the 1/N expansion

Edward Witten

Research output: Contribution to journalArticlepeer-review

750 Scopus citations

Abstract

An attempt is made to resolve certain discrepancies between instatons, the quark model and the 1/N expansion. It is argued that the most attractive resolution of these discrepancies is the possibility that quantum corrections cause the instanton gas to disappear in QCD. A two-dimensional model is described in which it can be seen explicitly that such a disappearance takes place. (This model has been investigated independently by D'Adda, Di Vecchia, and Lüscher.).

Original languageEnglish (US)
Pages (from-to)285-320
Number of pages36
JournalNuclear Physics, Section B
Volume149
Issue number2
DOIs
StatePublished - Mar 19 1979
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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