Phases and Amplitudes in Inclusive $Ψ$ and $Ψ'$ Decays

Details Phases and Amplitudes in Inclusive $Ψ$ and $Ψ'$ Decays Phases and Amplitudes in Inclusive $Ψ$ and $Ψ'$ Decays

1999-06-14

arxiv.org/abs/hep-ph/9906357v1

Phys.Lett. B462 (1999) 324-328

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages

Scientific paper

10.1016/S0370-2693(99)00849-7

In inclusive decays of the $\Psi$ (3097), electromagnetic and gluonic annihilation amplitudes add incoherently, namely they are 90$^\circ$ out of phase. We argue that this incoherence must persist in each exclusive decay channel. For inclusive $\Psi'$ (3686) decays, we suggest the absence of a significant direct annihilation amplitude into three gluons and propose a new amplitude via QCD anomalies and the $h_c$ (3526) off shell. Phenomenological implications for exclusive decay channels are pointed out.

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