Color-singlet direct J/ψand ψ' production at Tevatron in the k_t factorization approach

Abstract

Direct $J/\psi$ and ${\psi }^{\prime }$ production rates at Tevatron are calculated in the $k_t$-factorization approach within the color-singlet model. In this approach, the production rates are enhanced by a factor of 20 compared to the naive collinear parton model. However, the theoretical predictions are still below the experimental data by at least one order of magnitude. This means that to explain charmonium productions at Tevatron, we still need to call for the contributions from color-octet channels or other production mechanisms.

arXiv commentLatex, 10 pages, 4 figures

References in corpus (10)

• Rigorous QCD Analysis of Inclusive Annihilation and Production of Heavy Quarkonium
• Color-octet quarkonia production
• Color-Octet Fragmentation and the psi' Surplus at the Tevatron
• Color-octet quarkonia production II
• A unified BFKL and GLAP description of $F_2$ data
• Fragmentation production of J/psi and psi' at the Tevatron
• Production of Heavy Quarkonium in High Energy Colliders
• Charmonium Production at the Tevatron
• J/psi Production via Fragmentation at the Tevatron
• Quarkonium Decay Matrix Elements from Quenched Lattice QCD

Cited by in corpus (23)

• Quarkonium Production at High-Energy Colliders
• Nucleon electromagnetic form factors
• Upsilon production at the Tevatron and the LHC
• J/psi, psi' and Upsilon Production at Hadron Colliders: a review
• On the mechanisms of heavy-quarkonium hadroproduction
• Charmonium Production at High Energy in the k_T-Factorization Approach
• Small x Phenomenology - summary of the 3rd Lund Small x Workshop in 2004
• Direct J/Psi hadroproduction in k_\perp-factorization and the color octet mechanism
• J/psi plus jet associated production in two-photon collisions at next-to-leading order
• Real next-to-next-to-leading-order QCD corrections to J/psi and Upsilon hadroproduction in association with a photon
• Polarizations of J/ψand ψ' in hadroproduction at Tevatron in the k_t factorization approach
• Charmonium production in polarized high-energy collisions
• Inclusive production of $J/\psi$ meson in proton-proton collisions at BNL RHIC
• chi_{c1} and chi_{c2} decay angular distributions at the Fermilab Tevatron
• Direct J/psi and psi' hadroproduction via fragmentation in the collinear parton model and k_T-factorization approach
• On charmonia and charmed mesons photoproduction at high energy
• Photoproduction of J/psi mesons at high energies in parton model and k_t-faktorization approach
• Study of baryon octet electromagnetic form factors in perturbative chiral quark model
• Upsilonium polarization as a touchstone in understanding the proton dynamics in QCD
• Production and polarization of Upsilon mesons in the k_T-factorization approach in more detail
• Associated Production of Bottomonia and Higgs Bosons at Hadron Colliders
• BFKL Pomeron loop contribution in diffractive photoproduction and inclusive hadroproduction of $J/\psi$ and ${\rm Y}$
• Prompt J/psi production in charged-current deep-inelastic scattering