e+e- annihilation into J/ψ + J/ψ

Geoffrey T. Bodwin, Jungil Lee, Eric Braaten

Research output: Contribution to journalArticlepeer-review

82 Citations (Scopus)


A significant part of the dicrepancy between experiment and theory which may be attributable to the proces e+e- annihilation into J/ψ+J/ψ, where J/ψ is the lowest spin-triplet chromonium state is discussed. This process is overlooked because it is suppressed by α2s2, where α is the quantum electrodynamic (QED) coupling and αs is the QCD coupling. However, as it is shown, this process is enhanced by a kinematic factor that is assoicated witht he fragmentation of photons into cc̄ pairs.

Original languageEnglish
Pages (from-to)162001/1-162001/4
JournalPhysical review letters
Issue number16
Publication statusPublished - 2003 Apr 25
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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