Photoproduction of C-even quarkonia at EIC and EicC

Abstract

The ${\eta }_c$ photoproduction in $ep$ collision has long been proposed as an ideal process to probe the existence of odderon. In the current work, we systematically investigate the photoproduction of various $C$-even heavy quarkonia (exemplified by ${\eta }_{c(b)}$, and ${\chi }_{c(b)J}$ with $J=0,1,2$) via one-photon exchange channel, at the lowest order in ${\alpha }_s$ and heavy quark velocity in the context of NRQCD factorization. We find that the photoproduction rates of the $C$-even quarkonia through this mechanism are comparable in magnitude with that through the odderon-initiated mechanism, even in the Regge limit ($s\gg -t$), though the latter types of predictions suffers from considerable theoretical uncertainties. The future measurements of these types of quarkonium photoproduction processes in \texttt{EIC} and \texttt{EicC} are crucial to ascertain which mechanism plays the dominant role.

arXiv comment16 pages, 9 figures

References in corpus (26)

• Rigorous QCD Analysis of Inclusive Annihilation and Production of Heavy Quarkonium
• Electron-Ion Collider in China
• First measurement of near-threshold J/$\psi$ exclusive photoproduction off the proton
• A New Odderon Solution in Perturbative QCD
• Perturbative QCD Analysis of the Nucleon's Pauli Form Factor F_2(Q^2)
• Proton and neutron electromagnetic form factors and uncertainties
• Gluon gravitational form factors of the nucleon and the pion from lattice QCD
• Solution of the Odderon Problem
• QCD Analysis of Near-Threshold Photon-Proton Production of Heavy Quarkonium
• Comparison of $pp$ and $p\bar{p}$ differential elastic cross sections and observation of the exchange of a colorless $C$-odd gluonic compound
• Measurement of the differential cross section dσ/dt in elastic $p\bar{p}$ scattering at sqrt(s)=1.96 TeV
• Exclusive vector meson production at HERA
• Can NRQCD explain the $\gamma {\gamma }^{\ast }\to {\eta }_c$ transition form factor data?
• Diffractive eta_c photo-and electroproduction with the perturbative QCD Odderon
• Nucleon's energy-momentum tensor form factors in light-cone QCD
• Charm production at HERA
• Observing the Odderon: Tensor Meson Photoproduction
• Exclusive ${\eta }_c$ photo- and electroproduction at HERA as a possible probe of the odderon singularity in QCD
• How can the Odderon be detected at RHIC and LHC
• ${\eta }_c$ production in photon - induced interactions at the AFTER@LHC experiment as a probe of the Odderon
• Search for Odderon-Induced Contributions to Exclusive pi^0 Photoproduction at HERA
• Searching for the Odderon in Ultraperipheral Proton--Ion Collisions at the LHC
• The Process gamma* + p -> eta_c + X: A Test for the Perturbative QCD Odderon
• Direct Calculations of the Odderon Intercept in the Perturbative QCD
• Diffractive Photoproduction of Eta_c
• Odderon and photon exchange in pseudoscalar meson production

Cited by in corpus (5)

• Photon-Odderon interference in exclusive ${\chi }_c$ charmonium production at the Electron-Ion Collider
• Threshold photoproduction of ${\eta }_c$ and ${\eta }_b$ using holographic QCD
• Photo-production of ${\eta }_{c,b}$ near Threshold
• Exclusive Charmonium Production at the Electron-ion collider in China
• XYZ spectroscopy at electron-hadron facilities III: Semi-inclusive processes with vector exchanges