Associate J/ψ+γ production as a clean probe of heavy quark production models

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Associated J/ψ+γ production in deep inelastic e(μ)p collisions is suggested as a clean probe for distinguishing between heavy quark production models. At HERA energies, the event rates, possibly accompanied by spectator-jets of the incoming photon, and/or a measurement in particular of the γγ distribution unambiguously allow to discriminate between the semi-local duality model and the color-singlet model. At a fixed target μp experiment (Eμ=280 GeV, say), a mere confirmation of the existence of several J/ψ+γ events would already rule out the color-singlet model.

Original languageEnglish
Pages (from-to)298-302
Number of pages5
JournalPhysics Letters B
Issue number3
Publication statusPublished - 1993 Feb 11


All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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