Current Location:home > Detailed Browse

# On the leptonic partial widths of the excited ψ states

## Abstracts

 The resonance parameters of the excited ψ-family resonances, namely the ψ(4040), ψ(4160), and ψ(4415), were determined by fitting the R-values measured by experiments. It is found that the previously reported leptonic partial widths of these states were merely one possible solutions among a four-fold ambiguity. By fitting the most precise experimental data on the R-values measured by the BES collaboration, this work presents all four sets of solutions. These results may affect the interpretation of the charmonium and charmonium-like states above 4 GeV/c2.
Recommended references： X. H. Mo,C. Z. Yuan,P. Wang.(2017).On the leptonic partial widths of the excited ψ states.[ChinaXiv:201703.00616] (Click&Copy)
Version History
Related Paper