Charmonium production at the Tevatron and Large Hadron Collider in the Regge limit of QCD

Journal Article · Sun Dec 15 04:00:00 EST 2013 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778813110124· OSTI ID:22314764

Processes involving direct J/ψ-meson production in proton-antiproton and proton-proton collisions are studied under the assumption of gluon Reggeization in t-channel exchanges and with the aid of the formalism of nonrelativistic quantum chromodynamics. The present calculations are performed in the leading approximation in the strong coupling constant α{sub s} and in the relative quark velocity v. The octet nonperturbative matrix elements for the transition of a c<##> $\}\}\stackrel{\}¯}{c}$ $ /bar c $$ c-bar pair to quarkonium are fixed in fitting the transverse-momentumspectra obtained by the CDF Collaboration for J/ψ mesons at the Tevatron collider. The spectra of J/ψ-meson production at the energies of the Large Hadron Collider are predicted, and the resulting predictions agree well with experimental data obtained by the ATLAS, CMS, and LHCb Collaborations at <##> $\}\sqrt{S}$ $$ /sqrt S $√S = 7 TeV.

• OSTI ID: 22314764
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 12 Vol. 76; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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CERN LHC
CHARMONIUM
FERMILAB COLLIDER DETECTOR
FERMILAB TEVATRON
PROTON-PROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
QUARKS