[Formula presented] Annihilation into [Formula presented]

Geoffrey T. Bodwin, Jungil Lee, Eric Braaten

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Recent measurements by the Belle Collaboration of the exclusive production of two charmonia in [Formula presented] annihilation differ substantially from theoretical predictions. We suggest that a significant part of the discrepancy can be explained by the process [Formula presented]. Because the [Formula presented] production process can proceed through fragmentation of two virtual photons into two [Formula presented] pairs, its cross section may be larger than that for [Formula presented] by about a factor of 3.7, in spite of a suppression factor [Formula presented] that is associated with the QED and QCD coupling constants.

Original languageEnglish
Pages (from-to)4
Number of pages1
JournalPhysical review letters
Issue number16
Publication statusPublished - 2003
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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