Reconciling J/psi production at HERA, RHIC, Tevatron, and LHC with NRQCD factorization at next-to-leading order

Abstract

We calculate the cross section of inclusive direct J/psi hadroproduction at next-to-leading order (NLO) within the factorization formalism of nonrelativistic quantum chromodynamics (NRQCD), including the full relativistic corrections due to the intermediate 1S_0^[8], 3S_1^[8], and 3P_J^[8] color-octet states. We perform a combined fit of the color-octet (CO) long-distance matrix elements to the transverse-momentum (p_T) distributions measured by CDF at the Fermilab Tevatron and H1 at DESY HERA and demonstrate that they also successfully describe the p_T distributions from PHENIX at BNL RHIC and CMS at the CERN LHC as well as the photon-proton c.m. energy and (with worse agreement) the inelasticity distributions from H1. This provides a first rigorous test of NRQCD factorization at NLO. In all experiments, the CO processes are shown to be indispensable.

5 pages, 10 figures; manuscript matches the one being printed in Phys. Rev. Lett

References in corpus (9)

• J/psi (psi') production at the Tevatron and LHC at O(α_s^4v^4) in nonrelativistic QCD
• QCD corrections to J/psi and Upsilon production at hadron colliders
• QCD corrections to J/psi polarization of hadronproduction at Tevatron and LHC
• Finite-Mass Effects on Inclusive B-Meson Hadroproduction
• QCD radiative corrections to ${\chi }_{cJ}$ production at hadron colliders
• Improved determination of color-singlet nonrelativistic QCD matrix elements for S-wave charmonium
• Resummation of Large Endpoint Corrections to Color-Octet J/psi Photoproduction
• J/psi production at HERA
• J/ψpolarization in photo-production up-to the next-to-leading order of QCD

Cited by in corpus (3)

• J/psi (psi') production at the Tevatron and LHC at O(α_s^4v^4) in nonrelativistic QCD
• Polarization of prompt J/psi in pp -> J/psi+X at sqrt{s}=200 GeV
• Current Topics in Heavy Quarkonium Physics