The Fermi motion contribution to J/ψproduction at the hadron colliders

Abstract

We investigate the relativistic Fermi motion effect in the case of $J/\psi$ production in various hadron colliders. A light-cone wave function is adopted to represent the $J/\psi$ final state. The change in the confinement parameter which sets a scale for the size of the final state, allows one to see the effect in an explicit manner. While the effect has considerable influence on the fragmentation probabilities and the differential cross sections, the total cross sections are essentially left unchanged. such a feature is in agreement with the momentum sum rule which the fragmentation functions should satisfy.

arXiv comment10 pages, 4 figures, to appear in Phys. Lett. B

References in corpus (23)

• Rigorous QCD Analysis of Inclusive Annihilation and Production of Heavy Quarkonium
• Measurement of the J/Psi Meson and b-Hadron Production Cross Sections in ppbar Collisions at sqrt s = 1960 GeV
• Diffractive Leptoproduction of Vector Mesons in QCD
• Parton Distributions of the Proton
• Rigorous QCD Predictions for Decays of P-Wave Quarkonia
• Hard diffractive electroproduction of vector mesons in QCD
• Fragmentation production of J/psi and psi' at the Tevatron
• Analysis of the Pion Wave Function in Light-Cone Formalism
• J/psi Production via Fragmentation at the Tevatron
• $B\to J/\psi K$ Decays in QCD Factorization
• Predictions for $e^{+}{e}^{-}\to J/\psi {\eta }_c$ with Light-Cone Wave-Functions
• Inelastic J/psi and Upsilon hadroproduction
• J/psi production at the Tevatron and HERA: the effect of k_T smearing
• B -> J/psi K^* Decays in QCD Factorization
• A fresh look at diffractive $J/\psi$ photoproduction at HERA, with predictions for THERA
• J/ΨProduction in pp Collisions at \sqrt s = 200 GeV at RHIC
• Problems of QCD factorization in exclusive decays of B meson to charmonium
• Infrared divergences of $B$ meson exclusive decays to P-wave charmonia in QCD factorization and nonrelativistic QCD
• $J/\psi$ production and nuclear effects for d+Au and p+p collisions in PHENIX
• Transverse Momentum Dependent Light-Cone Wave Function of B-Meson and Relation to the Momentum Integrated One
• J/psi Production: Tevatron and Fixed-Target Collisions
• Direct Fragmentation of Quarkonia Including Fermi Motion Using Light-cone Wave Function
• Diffractive η_c and η_b productions by neutrinos via neutral currents