The J/ψProduction Associated with a Hard Photon and the Color-Octet Singnature in e^+e^- Annihilation

Details The J/ψProduction Associated with a Hard Photon and the Color-Octet Singnature in e^+e^- Annihilation The J/ψProduction Associated with a Hard Photon and the Color-Octet Singnature in e^+e^- Annihilation

1997-04-21

arxiv.org/abs/hep-ph/9704364v3

Phys.Rev.D56:1363-1367,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, RevTex, 5 postscript figures. Discussion and English slightly modified, Version to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.56.R1363

J/\psi production associated with a hard photon in e^+e^- annihilation, being of QED nature, is invastigated thoroughly in the paper. To show its influence on the observation of the color-octet singnature in the e^+e^- annihilation via J/\psi inclusive production, the cross sections of the J/\psi productions through different mechanisms at various energies are compared quantatively by presenting them in figures together. The contribution from the production associated with a hard photon to the inclusive production of J/\psi is pointed out to be significant at the concerned energies, thus the influence from it on the observation of the color-octet signature should be dealt with carefully.

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