Experimental Consequences of a Small Mixture of c anti-c in the eta-prime and eta Mesons
Nov, 19755 pages
Published in:
- Phys.Lett.B 60 (1976) 172-176
- Published: 1976
Report number:
- WIS-75-39-PH
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Abstract: (Elsevier)
We show that a small but significant mixing of η and η′ with the pseudoscalar cc̄ state may explanin the large η and η′ masses, the small mass of the new 2.8 GeV state, the large rates for ψ′ → ψη, ψ → η′γ and ψ → ηψ, the large number of photons in ψ decay, some of the missing decay modes of ψ′ and ψ and the small K/π ratio in ψ′ and ψ decays. We predict that 20–30% of all ψ and ψ′ decays contain an η′. Other tests and one important difficulty are also discussed.- QUARK: CHARM
- QUARK ANTIQUARK
- ETA(549)
- ETA'(958)
- NEW PARTICLE: X(2750)
- MASS
- PSI(3700): DECAY MODES
- J/psi(3100): DECAY MODES
- PHOTON: FINAL STATE
- FINAL STATE: PHOTON
References(4)
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