The role of the Roper in QCD

S. R. Beane, Ubirajara Van Kolck

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

We show that existing data suggest a simple scenario in which the nucleon and the Δ and Roper resonances act as chiral partners in a reducible representation of the full QCD chiral symmetry group. We discuss the peculiar interpretation of this scenario using spin-flavour symmetries of the naive constituent quark model, as well as the consistency of the scenario with large-Nc expectations.

Original languageEnglish (US)
Pages (from-to)921-933
Number of pages13
JournalJournal of Physics G: Nuclear and Particle Physics
Volume31
Issue number8
DOIs
Publication statusPublished - Aug 1 2005

    Fingerprint

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this