Limits on Intrinsic Charm Production from the SeaQuest Experiment

Abstract

Background: A nonperturbative charm production contribution, known as intrinsic charm, has long been speculated but has never been satisfactorily proven. The SeaQuest experiment at FNAL is in an ideal kinematic region to provide evidence of $J/\psi$ production by intrinsic charm. Purpose: $J/\psi$ production in the SeaQuest kinematics is calculated with a combination of perturbative QCD and intrinsic charm to see whether the SeaQuest data can put limits on an intrinsic charm contribution. Methods: $J/\psi$ production in perturbative QCD is calculated to next-to-leading order in the cross section. Cold nuclear matter effects include nuclear modification of the parton densities, absorption by nucleons, and $p_T$ broadening by multiple scattering. The $J/\psi$ contribution from intrinsic charm is calculated assuming production from a $|uudc\overline{c}⟩$ Fock state. Results: The nuclear modification factor, $R_{pA}$, is calculated as a function of $x_F$ and $p_T$ for $p+$C, $p+$Fe, and $p+$W interactions relative to $p+$d. Conclusions: The SeaQuest kinematic acceptance is ideal for testing the limits on intrinsic charm in the proton.

arXiv comment21 pages, 12 figures

References in corpus (52)

• Rigorous QCD Analysis of Inclusive Annihilation and Production of Heavy Quarkonium
• New parton distributions for collider physics
• Heavy quarkonium: progress, puzzles, and opportunities
• Heavy Quark Symmetry
• Implications of CTEQ global analysis for collider observables
• EPPS16: Nuclear parton distributions with LHC data
• Charmonium and $e^{+}{e}^{-}$ pair photoproduction at mid-rapidity in ultra-peripheral Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$=2.76 TeV
• Coherent J/$\psi$ photoproduction in ultra-peripheral Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Measurement of Differences Between J/Psi and Psi' Suppression in p-A Collisions
• A Quantitative Analysis of Charmonium Suppression in Nuclear Collisions
• Quarkonium production in hadronic collisions
• The Charm Parton Content of the Nucleon
• Reanalysis of the EMC charm production data with extrinsic and intrinsic charm at NLO
• Coherent J/psi photoproduction in ultra-peripheral PbPb collisions at sqrt(s[NN]) = 2.76 TeV with the CMS experiment
• A review of the intrinsic heavy quark content of the nucleon
• Quarkonium Production in an Improved Color Evaporation Model
• Narrowing the uncertainty on the total charm cross section and its effect on the J/ψ cross section
• A Bound on the Energy Loss of Partons in Nuclei
• Nuclear modification of psi^prime, chi_c and J/psi production in d+Au collisions at sqrt(s_NN) = 200 GeV
• Energy dependence of J/psi absorption in proton-nucleus collisions
• New limits on intrinsic charm in the nucleon from global analysis of parton distributions
• The $x_F$ Dependence of $\psi$ and Drell-Yan Production
• Photoproduction of charm near threshold
• The A Dependence of Open Charm and Bottom Production
• J/psi suppression in p-A collisions from parton energy loss in cold QCD matter
• J/$\psi$ production and nuclear effects in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Phenomenology of nonperturbative charm in the nucleon
• Where is the jet quenching in Pb+Pb collisions at 158 AGeV?
• First measurement of charm production in fixed-target configuration at the LHC
• Intrinsic Charm Parton Distribution Functions from CTEQ-TEA Global Analysis
• Kinematic distributions and nuclear effects of $J/\psi$ production in 920 GeV fixed-target proton-nucleus collisions
• Study of $J/\psi$ production and cold nuclear matter effects in $p$Pb collisions at $\sqrt{s_{NN}}=5\mathrm{TeV}$
• J/$\psi$ suppression at $\sqrt{\mathbf{s}}=$ 200 GeV in the comovers interaction model
• Measurement of prompt and nonprompt J/psi production in pp and pPb collisions at sqrt(s[NN]) = 5.02 TeV
• Production and polarization of prompt $J/\psi$ in the improved color evaporation model using the $k_T$-factorization approach
• Centrality dependence of inclusive J/$\psi$ production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• The Effect of Shadowing on Initial Conditions, Transverse Energy and Hard Probes in Ultrarelativistic Heavy Ion Collisions
• Are the $J/\psi$ and ${\chi }_{c}A$ Dependencies the Same?
• Impact parameter dependence of the nuclear modification of J/psi production in d+Au collisions at sqrt(S_NN) = 200 GeV
• Virtual Meson Cloud of the Nucleon and Intrinsic Strangeness and Charm
• Energy loss of fast quarks in nuclei
• Constraints on charm-anticharm asymmetry in the nucleon from lattice QCD
• A Kinematic Condition on Intrinsic Charm
• Measurement of differential $J/\psi$ production cross-sections and forward-backward ratio in p+Pb collisions with the ATLAS detector
• Leading Charm in Hadron-Nucleus Interactions in the Intrinsic Charm Model
• Polarization of prompt $J/\psi$ and ${\rm Y}$(1S) production in the color evaporation model
• Heavy Flavor Azimuthal Correlations in Cold Nuclear Matter
• Polarized Heavy Quarkonium Production in the Color Evaporation Model
• Production and polarization of prompt ${\rm Y}$($n$S) in the improved color evaporation model using the $k_T$-factorization approach
• Measurement of the J/Psi Production Cross Section in 920 GeV/c Fixed-Target Proton-Nucleus Interactions
• $\mathrm{J}/\psi$ production at low transverse momentum in p+p and d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• $b\bar{b}$ Kinematic Correlations in Cold Nuclear Matter

Cited by in corpus (9)

• The Present and Future of QCD
• Open charm production and asymmetry in $p$Ne collisions at $\sqrt{s_{\mathrm{NN}}}=$ 68.5 GeV
• Constraints on Gluon Distribution Functions in the Nucleon and Nucleus from Open Charm Hadron Production at the Electron-Ion Collider
• Energy Dependence of Intrinsic Charm Production: What is the Best Energy for Observation?
• Bottom Tetraquark Production at RHIC?
• Charmonium production in $p$Ne collisions at $\sqrt{s_{\mathrm{NN}}}=68.5$ GeV
• Quarkonium polarization in Pb+Pb collisions in the improved color evaporation model
• Letter of Intent: the NA60+ experiment
• Contribution from Intrinsic Charm Production to Fixed-Target Interactions at the LHC