Quarkonium decays: Testing the 3-gluon vertex

K. Koller, K. H. Streng, T. F. Walsh, P. M. Zerwas

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We study the 3-jet decays of S- and P-wave quarkonia with C=+. If observed, some of these will offer a way of seeing the 3G vertex of QCD via 1S0, 3P0, 3P2(QQ) → GGG + Gqq → 3 jets. (As is well-known, cancellations reduce 3P1(QQ)→GGG.) We elaborate in detail the S-wave decay, as it is expected to show all the characteristic features of orthoquarkonium decays into 4 jets, 3S1(QQ) → GGGG + GGqq → 4 jets, which we will comment upon. These quarkonium decays offer a very clear signal for QCD as a non-abelian local gauge field theory with color-charged gluons.

Original languageEnglish (US)
Pages (from-to)61-84
Number of pages24
JournalNuclear Physics, Section B
Issue number1
StatePublished - Dec 21 1981


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