Determination of the ψ(3770), ψ(4040), ψ(4160) and ψ(4415) resonance parameters
2008
Abstract R values measured with the BESII detector at center-of-mass energies between 3.7 and 5.0 GeV are fitted to determine resonance parameters (mass, total width, electron width) of the high mass charmonium states, ψ ( 3770 ) , ψ ( 4040 ) , ψ ( 4160 ) and ψ ( 4415 ) . Various effects, including the interferences and relative phases between the resonances, the energy-dependence of the full widths, and the initial state radiative correction, are examined. The results are compared to previous studies.
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