Probing Transverse Momentum Dependent Parton Distributions in Charmonium and Bottomonium Production

Abstract

We propose the study of unpolarized transverse momentum dependent gluon parton distributions as well as the effect of linearly polarized gluons on transverse momentum and rapidity distributions of $J/\psi$ and ${\rm Y}$ production within the framework of transverse momentum dependent factorization employing color evaporation model (CEM) in unpolarized proton-proton collision. We estimate the transverse momentum and rapidity distributions of $J/\psi$ and ${\rm Y}$ at LHCb, RHIC and AFTER energies using TMD evolution formalism.

25 pages, 10 figures

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• Sivers effect in Inelastic $J/\psi$ Photoproduction in $e{p}^{\uparrow }$ Collision in Color Octet Model
• Gluon TMDs in quarkonium production
• Linearly polarized gluons in charmonium and bottomonium production in color octet model
• TMD factorization for dijet and heavy-meson pair in DIS
• Transverse momentum dependent shape function for $J/\psi$ production in SIDIS
• Sivers Asymmetry in Photoproduction of $J/\psi$ and Jet at the EIC
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• Gluon TMD fragmentation function into quarkonium
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• Polarized $J/\psi$ production in semi-inclusive DIS at large $Q^2$: Comparing quark fragmentation and photon-gluon fusion
• Investigating the Transverse Single Spin Asymmetry in the Inelastic $J/\Psi$ photoproduction in $p^{\uparrow }p$ and $p^{\uparrow }A$ collisions
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