Abstract
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 α2/αs2, 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 language | English |
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Article number | 162001 |
Pages (from-to) | 162001/1-162001/4 |
Journal | Physical review letters |
Volume | 90 |
Issue number | 16 |
Publication status | Published - 2003 Apr 25 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy