Fixed-target charmonium production and pion parton distributions

Abstract

We investigate how charmonium hadroproduction at fixed-target energies can be used to constrain the gluon distribution in pions. Using nonrelativistic QCD (NRQCD) formulation, the $J/\psi$ and $\psi (2S)$ cross sections as a function of longitudinal momentum fraction $x_F$ from pions and protons colliding with light targets, as well as the $\psi (2S)$ to $J/\psi$ cross section ratios, are included in the analysis. The color-octet long-distance matrix elements are found to have a pronounced dependence on the pion parton distribution functions (PDFs). This study shows that the $x_F$ differential cross sections of pion-induced charmonium production impose strong constraints on the pion's quark and gluon PDFs. In particular, the pion PDFs with larger gluon densities provide a significantly better description of the data. It is also found that the production of the $\psi (2S)$ state is associated with a larger quark-antiquark contribution, compared with $J/\psi$.

arXiv comment15 pages, 10 figures and 23-page supplementary materials. Published version

References in corpus (71)

• Rigorous QCD Analysis of Inclusive Annihilation and Production of Heavy Quarkonium
• Heavy quarkonium: progress, puzzles, and opportunities
• LHAPDF6: parton density access in the LHC precision era
• New parton distribution functions from a global analysis of quantum chromodynamics
• nCTEQ15 - Global analysis of nuclear parton distributions with uncertainties in the CTEQ framework
• EPPS16: Nuclear parton distributions with LHC data
• Electron-Ion Collider in China
• Quarkonium Wave Functions at the Origin
• J/psi polarization at hadron colliders in nonrelativistic QCD
• Reconciling J/psi production at HERA, RHIC, Tevatron, and LHC with NRQCD factorization at next-to-leading order
• Polarization for Prompt J/psi, psi(2s) production at the Tevatron and LHC
• J/psi, psi' and Upsilon Production at Hadron Colliders: a review
• Pion and Kaon Structure at the Electron-Ion Collider
• Fragmentation contributions to J/psi production at the Tevatron and the LHC
• First Monte Carlo global QCD analysis of pion parton distributions
• The pion: an enigma within the Standard Model
• Pion Valence Quark Distribution from Matrix Element Calculated in Lattice QCD
• Universality of Generalized Parton Distributions in Light-Front Holographic QCD
• Pion Valence Structure from Ioffe Time Pseudo-Distributions
• New Observables in Inclusive Production of Quarkonia
• First direct lattice-QCD calculation of the $x$-dependence of the pion parton distribution function
• Hadro-production of Quarkonia in Fixed Target Experiments
• Valence parton distribution function of pion from fine lattice
• First measurement of transverse-spin-dependent azimuthal asymmetries in the Drell-Yan process
• Parton Distribution Functions of the Charged Pion Within The xFitter Framework
• Symmetry, symmetry breaking, and pion parton distributions
• Parton Distribution Functions from a Light Front Hamiltonian and QCD Evolution for Light Mesons
• Valence parton distribution of pion from lattice QCD: Approaching continuum
• Basic features of the pion valence-quark distribution function
• A complete NLO calculation of the $J/\psi$ and ${\psi }^{\prime }$ production at hadron colliders
• Impact of ${\eta }_c$ hadroproduction data on charmonium production and polarization within NRQCD framework
• Pion valence quark distribution from current-current correlation in lattice QCD
• The $x_F$ Dependence of $\psi$ and Drell-Yan Production
• Pion and kaon parton distribution functions from basis light front quantization and QCD evolution
• Valence-quark distribution functions in the kaon and pion
• Pion generalized parton distribution from lattice QCD
• Fragmentation contributions to hadroproduction of prompt $J/\psi$, ${\chi }_{cJ}$, and $\psi (2S)$ states
• Flavour dependence of the pion and kaon form factors and parton distribution functions
• Comparison of the color-evaporation model and the NRQCD factorization approach in charmonium production
• Continuum-extrapolated NNLO Valence PDF of Pion at the Physical Point
• Analysis of charmonium production at fixed-target experiments in the NRQCD approach
• Light mesons with one dynamical gluon on the light front
• Distinguishing Quarks and Gluons in Pion and Kaon PDFs
• Gluon Parton Distribution of the Pion from Lattice QCD
• Concerning pion parton distributions
• Pion structure function from leading neutron electroproduction and SU(2) flavor asymmetry
• A Measurement of the Psi' to J/psi Production Ratio in 920 GeV Proton-Nucleus Interactions
• Letter of Intent: A New QCD facility at the M2 beam line of the CERN SPS (COMPASS++/AMBER)
• Emergence of pion parton distributions
• Parton-distribution functions for the pion and kaon in the gauge-invariant nonlocal chiral-quark model
• The pion and kaon $⟨x^3⟩$ from lattice QCD and PDF reconstruction from Mellin moments
• An Analysis of Parton Distribution Functions of the Pion and the Kaon with the Maximum Entropy Input
• Information from leading neutrons at HERA
• Pion and kaon valence quark distribution functions from Dyson-Schwinger equations
• Towards the three-dimensional parton structure of the pion: Integrating transverse momentum data into global QCD analysis
• Complementarity of experimental and lattice QCD data on pion parton distributions
• Extraction of gluon distributions from structure functions at small x in holographic QCD
• Kaon quark distribution functions in the chiral constituent quark model
• Pion Valence Quark Distributions from Maximum Entropy Method
• Constraining gluon density of pions at large $x$ by pion-induced $J/\psi$ production
• Pion Valence-quark Parton Distribution Function
• The Mellin moments $⟨x⟩$ and $⟨x^2⟩$ for the pion and kaon from lattice QCD
• Parton physics from a heavy-quark operator product expansion: Lattice QCD calculation of the second moment of the pion distribution amplitude
• Meson cloud effects on the pion quark distribution function in the chiral constituent quark model
• Initial-state energy loss in cold QCD matter and the Drell-Yan process
• The pionic Drell-Yan process: a brief survey
• Gluon PDF from Quark dressing in the Nucleon and Pion
• Hadro-Production of Quarkonia in Fixed Target Experiments
• NRQCD analysis of charmonium production with pion and proton beams at fixed-target energies
• Pion-nucleus induced Drell-Yan cross section in models inspired by light-front holography
• Regarding the distribution of glue in the pion

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