$J/\psi$ and $\psi (2S)$ production at forward rapidity in $p$+$p$ collisions at $\sqrt{s}=510$ GeV

Abstract

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured the differential cross section, mean transverse momentum, mean transverse momentum squared of inclusive $J/\psi$ and cross-section ratio of $\psi (2S)$ to $J/\psi$ at forward rapidity in \pp collisions at \sqrts = 510 GeV via the dimuon decay channel. Comparison is made to inclusive $J/\psi$ cross sections measured at \sqrts = 200 GeV and 2.76--13 TeV. The result is also compared to leading-order nonrelativistic QCD calculations coupled to a color-glass-condensate description of the low-$x$ gluons in the proton at low transverse momentum ($p_T$) and to next-to-leading order nonrelativistic QCD calculations for the rest of the $p_T$ range. These calculations overestimate the data at low $p_T$. While consistent with the data within uncertainties above $\approx 3$ GeV/$c$, the calculations are systematically below the data. The total cross section times the branching ratio is BR $dσ^{J/ψ}_{pp}/dy (1.2<|y|<2.2, 0<p_T<10~\mbox{GeV/$c$}) =$ 54.3 $\pm$ 0.5 (stat) $\pm$ 5.5 (syst) nb.

arXiv comment361 authors from 71 institutions, 13 pages, 4 tables, 11 figures, 2013 data. v2 is version accepted for publication in Physical Review D. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html

References in corpus (30)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• Big-Bang Nucleosynthesis
• Rigorous QCD Analysis of Inclusive Annihilation and Production of Heavy Quarkonium
• High-Energy-Physics Event Generation with PYTHIA 6.1
• Measurement of the J/Psi Meson and b-Hadron Production Cross Sections in ppbar Collisions at sqrt s = 1960 GeV
• QCD Predictions for Charm and Bottom Production at RHIC
• Transverse-Momentum-Ordered Showers and Interleaved Multiple Interactions
• Mid-Rapidity Neutral Pion Production in Proton-Proto Collisions at sqrt(s_NN) = 200 GeV
• J/psi (psi') production at the Tevatron and LHC at O(α_s^4v^4) in nonrelativistic QCD
• J/psi Production vs Transverse Momentum and Rapidity in p+p Collisions at sqrt(s) = 200 GeV
• Rapidity and transverse momentum dependence of inclusive J/$\psi$ production in pp collisions at $\sqrt{s}=7$ TeV
• Comprehensive description of $J/\psi$ production in proton-proton collisions at collider energies
• Exclusive $J/\psi$ and $\psi (2S)$ production in $pp$ collisions at $\sqrt{s}=7$ TeV
• Quantitative Tests of Color Evaporation: Charmonium Production
• J/psi and psi' production and their normal nuclear absorption in proton-nucleus collisions at 400 GeV
• Narrowing the uncertainty on the total charm cross section and its effect on the J/ψ cross section
• Inclusive J/psi production in pp collisions at sqrt(s) = 2.76 TeV
• Ground and excited charmonium state production in p+p collisions at sqrt(s)=200 GeV
• Measurement of prompt J/psi and beauty hadron production cross sections at mid-rapidity in pp collisions at sqrt(s) = 7 TeV
• Measurement of $\psi (2S)$ polarisation in $pp$ collisions at $\sqrt{s}=7$ TeV
• Cross Section and Parity Violating Spin Asymmetries of W^+/- Boson Production in Polarized p+p Collisions at sqrt(s)=500 GeV
• On the combination of correlated estimates of a physics observable
• Energy dependence of forward-rapidity J/$\psi$ and $\psi (2S)$ production in pp collisions at the LHC
• Inclusive cross section and double-helicity asymmetry for ${\pi }^0$ production at midrapidity in $p$$+$$p$ collisions at $\sqrt{s}=510$ GeV
• Inclusive quarkonium production at forward rapidity in pp collisions at $\sqrt{s}=8$ TeV
• The PHENIX Forward Silicon Vertex Detector
• Measurement of the relative yields of $\psi (2S)$ to $\psi (1S)$ mesons produced at forward and backward rapidity in $p$$+$$p$, $p$$+$Al, $p$$+$Au, and ${}^3$He$+$Au collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV
• Measurements of the transverse-momentum-dependent cross sections of $J/\psi$ production at mid-rapidity in proton+proton collisions at $\sqrt{s}=$ 510 and 500 GeV with the STAR detector
• Measurements of $B\to J/\psi$ at forward rapidity in $p$$+$$p$ collisions at $\sqrt{s}=510$ GeV

Cited by in corpus (3)

• First measurement of quarkonium polarization in nuclear collisions at the LHC
• $J/\psi$ and $\psi$(2S) polarization in proton-proton collisions at energies available at the CERN Large Hadron Collider using PYTHIA8
• Production of $b\bar{b}$ at forward rapidity in $p$+$p$ collisions at $\sqrt{s}=510$ GeV