J/ψ Production with NRQCD: HERA, Tevatron, RHIC and LHC

Link:
Autor/in:
Erscheinungsjahr:
2011
Medientyp:
Text
Schlagworte:
  • Heavy quarkonia
  • Lepton-nucleon scattering
  • Nonrelativistic qcd
  • Nucleon-nucleon scattering
Beschreibung:
  • We report on our recent calculation of the inclusive direct photo- and hadroproduction of the J/ψ ?meson at next-to-leading order within the factorization formalism of nonrelativistic QCD. We fit the color-octet (CO) long-distance matrix elements , and to the transverse momentum (pT ) distributions measured by CDF at Fermilab Tevatron and by H1 at DESY HERA and show that they also successfully describe the pT 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. In all experiments, the CO processes are shown to be indispensable. © 2011 American Institute of Physics.
Lizenz:
  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH
Interne Metadaten
Quelldatensatz
oai:www.edit.fis.uni-hamburg.de:publications/1f3e85e1-91eb-41de-bfad-aad4309a3784