Radiative decays as tests of the symmetries of the Ψ particles
1975; Elsevier BV; Volume: 59; Issue: 3 Linguagem: Inglês
10.1016/0370-2693(75)90045-3
ISSN1873-2445
AutoresR. N. Cahn, Michael S. Chanowitz,
Tópico(s)Black Holes and Theoretical Physics
ResumoThe success of the Okubo-Iizuka-Zweig rule for decays of Ψ and Ψ′ suggests that the radiative decays Ψ → γ + hadrons should be dominated by intermediates like Ψ → Ψ′ hadrons. This mechanism is consistent with experimental data which show Γ(Ψ → ϱ0π0) and Γ(Ψ → ηγ) to be comparable. if all Ψ-like particles are isoscalar, Γ(Ψ → 0γ) should be very small. If all Ψ-like particles are SU(3) singlets, Γ(Ψ → η′γ)/Γ(Ψ → ηγ) should be large. Substantial violation of our predictions would be circumstantial evidence for the existence of non-singlet new quarks.
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