Impact of ${\eta }_c$ hadroproduction data on charmonium production and polarization within NRQCD framework

Abstract

With the recent LHCb data on ${\eta }_c$ production and based on heavy quark spin symmetry, we obtain the long-distance matrix elements for both ${\eta }_c$ and $J/\psi$ productions, among which, the color-singlet one for ${\eta }_c$ is obtained directly by the fit of experiment for the first time. Using our long-distance matrix elements, we can provide good description of the ${\eta }_c$ and $J/\psi$ hadroproduction measurements. Our predictions on $J/\psi$ polarization are in good agreement with the LHCb data and pass through the two sets of CDF measurements in medium $p_t$ region. Considering all the possible uncertainties carefully, we obtained quite narrow bands of the $J/\psi$ polarization curves.

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• Measurement of the e+e- -> J/psi ccbar cross section at \sqrt{s} ~10.6 GeV
• Production of psi(2S) Mesons in ppbar Collisions at 1.96 TeV
• Factorized power expansion for high-$p_T$ heavy quarkonium production
• Relativistic Correction to Color Octet J/psi Production at Hadron Colliders
• Production of ${\eta }_Q$ meson at LHC
• h_c Production at Hadron Colliders

Cited by in corpus (16)

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• Associated production of a quarkonium and a Z boson at one loop in a quark-hadron-duality approach
• Measurement of the ${\eta }_c(1S)$ production cross-section in $pp$ collisions at $\sqrt{s}=13$ TeV
• Phenomenological NLO analysis of eta(c) production at the LHC in the collider and fixed-target modes
• Extracting color octet NRQCD matrix elements from $J/\psi$ production at the EIC
• HELAC-Onia 2.0: an upgraded matrix-element and event generator for heavy quarkonium physics
• Relativistic corrections to $J/\psi$ polarization in photo- and hadroproduction
• Energy Dependence of Direct-Quarkonium Production in pp Collisions from Fixed-Target to LHC Energies: Complete One-Loop Analysis
• Study on ${\eta }_{c2}({\eta }_{b2})$ electromagnetic decay into double photons
• Inclusive diffractive ${\eta }_{\mathrm{c}}$ production in pp, pA and AA modes at the LHC
• Kinematic distributions of the ${\eta }_c$ photoproduction in $ep$ collisions within the nonrelativistic QCD framework
• $J/\psi$ polarization in large-$P_T$ semi-inclusive deep-inelastic scattering at the EIC
• ${\eta }_c$ production associated with light hadrons at the B-factories and the future super B-factories
• NLO QCD Corrections to Inclusive Charmonium and $B_c$ Meson Production in $W^{+}$ Decays
• Bottomonia production in p+p collisions under NRQCD formalism