Color Evaporation Description of Inelastic Photo-Production of J/ψat HERA

Abstract

The H1 Collaboration recently reported a new analysis on the inelastic photo- production of J/ψmesons at DESY HERA ep collider. We show that these new experimental results are well described by the Color Evaporation Model for quarkonium production. Moreover, this new data requires the introduction of resolved photon contributions in order to explain the results on small charmonium energy fraction, indicating that colored c \bar{c} pairs also contribute to the process.

arXiv comment2-column, six pages, Revtex4, uses epsfig.sty, 7 postscript figures

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Cited by in corpus (13)

• New Observables in Inclusive Production of Quarkonia
• Diffractive Vector Meson Production at HERA: from Soft to Hard QCD
• Comparison of the color-evaporation model and the NRQCD factorization approach in charmonium production
• Sivers Effect and Transverse Single Spin Asymmetry in $e+p^{\uparrow }\to e+J/\psi +X$
• Transverse Single Spin Asymmetry in $e+p^{\uparrow }\to e+J/\psi +X$ and Transverse Momentum Dependent Evolution of the Sivers Function
• Probing Transverse Momentum Dependent Parton Distributions in Charmonium and Bottomonium Production
• Diffractive quarkonium photoproduction in $pp$ and $pA$ collisions at the LHC: Predictions of the Resolved Pomeron model for the Run 2 energies
• Pseudoscalar heavy-quarkonium hadroproduction from nonrelativistic fragmentation at NLL/NLO${}^{+}$
• Investigating the Transverse Single Spin Asymmetry in the Inelastic $J/\Psi$ photoproduction in $p^{\uparrow }p$ and $p^{\uparrow }A$ collisions
• Testing Color Evaporation in Photon-Photon Production of J/Psi at CERN LEP II
• Transverse Single Spin Asymmetries and Charmonium Production
• Inclusive diffractive heavy quarkonium photoproduction including quark subprocesses
• Sivers Asymmetry in $e+p^{\uparrow }\to e+J/\psi +X$