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Inclusive $J/ψ$ photoproduction at HERA

Michael Krämer
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Abstract

I discuss the impact of color-octet contributions to inclusive $J/ψ$ photoproduction at HERA. Emphasis is put on resolved photon processes and on $J/ψ$ polarization, which will be experimentally accessible at HERA in the near future. Both analyses provide a powerful test of the NRQCD factorization approach to charmonium production.

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Michael Krämer. 1997-07-24. Inclusive $J/ψ$ photoproduction at HERA. https://arxiv.org/abs/hep-ph/9707449

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