Quantum numbers and decay widths of the ψ(3684)

V. Lüth, A. M. Boyarski, H. L. Lynch, M. Breidenbach, F. Bulos, G. J. Feldman, D. Fryberger, G. Hanson, D. L. Hartill, B. Jean-Marie, R. R. Larsen, D. Lüke, C. C. Morehouse, J. M. Paterson, M. L. Perl, T. P. Pun, P. Rapidis, B. Richter, R. F. Schwitters, W. TanenbaumF. Vannucci, G. S. Abrams, W. Chinowsky, C. E. Friedberg, G. Goldhaber, J. A. Kadyk, A. M. Litke, B. A. Lulu, F. M. Pierre, B. Sadoulet, G. H. Trilling, J. S. Whitaker, F. C. Winkelmann, James E Wiss

Research output: Contribution to journalArticlepeer-review


Cross sections for e+e-→hadrons, e+e-, and μ+μ- near 3684 MeV are presented. The ψ(3684) resonance is established as having the assignment JPC=1 - . The mass is 3684 ± 5 MeV. The partial width for decay to electrons is Γe=2.1±0.3 keV and the total width is Γ=228±56 keV.

Original languageEnglish (US)
Pages (from-to)1124-1126
Number of pages3
JournalPhysical review letters
Issue number17
StatePublished - 1975

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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