Quarkonium decays: Testing the 3-gluon vertex
1981; Elsevier BV; Volume: 193; Issue: 1 Linguagem: Inglês
10.1016/0550-3213(81)90518-6
ISSN1873-1562
AutoresK. Koller, K. H. Streng, Thomas F. Walsh, P.M. Zerwas,
Tópico(s)High-Energy Particle Collisions Research
ResumoWe 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.
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