Color Octet Contribution to $J/ψ$ Production at a Photon Linear Collider

Details Color Octet Contribution to $J/ψ$ Production at a Photon Linear Collider Color Octet Contribution to $J/ψ$ Production at a Photon Linear Collider

1998-03-25

arxiv.org/abs/hep-ph/9803447v1

Phys.Lett. B433 (1998) 139-146

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, LaTeX, with 4 eps figs included with epsfig.sty

Scientific paper

10.1016/S0370-2693(98)00697-2

We investigate $J/\psi$ production at a Photon Linear Collider (PLC) in the framework of NRQCD factorization approach. It was shown that color octet contribution is dominating in charmonium production at PLC. The main fraction of $J/\psi$ comes from the single and double resolved photon processes. Expected cross sections of charmonium states production are large enough even at $p_T>5$ GeV to expect several hundreds of $J/\psi$'s through the leptonic decays channel for a projected integral PLC luminosity of $50 fb^{-1}$}

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