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Comment on the interpretation of the particle as a charm-anticharm bound state
Phys. Rev. D 13, 150 – Published 1 January, 1976
DOI: https://doi.org/10.1103/PhysRevD.13.150
Abstract
Assuming that the 3.1-GeV resonance observed at SLAC and BNL is interpreted as a vector meson belonging to the 15 + 1 representation of SU(4), we remark on its decay width to a lepton pair, using the first spectral-function sum rule for U(4) and the assumption of pole dominance. The observed leptonic decay width, , requires a charge assignment of the quarks, completely different from the conventional one. We propose another way to distinguish between the two assignments.
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