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- W3032539054 abstract "We present a recent estimate [8] of azimuthal asymmetry $(cos~2phi)$ in $J/psi$ production in ep collision within the kinematics of the planned electron-ion collider (EIC). We find a small but sizable asymmetry in the small-$x$ region which can be observed at the EIC. This asymmetry directly probes the Weizsacker-Williams (WW) type linearly polarized gluon distribution in the unpolarized proton. We calculate the asymmetry at next-to-leading order in the kinematical region which satisfies, energy fraction of $J/psi$, $z < 1$ and the subprocess $gamma^∗ + g rightarrow c + bar{c}+ g$ gives the leading contribution. We use color singlet (CS) model for $J/psi$ production. We estimate the asymmetry in two models for TMDs: (i) Gaussian type parameterization and (ii) McLerran-Venugopalan (MV) model at small-$x$ and also we present the upper bound of the asymmetry." @default.
- W3032539054 created "2020-06-05" @default.
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- W3032539054 creator A5044145785 @default.
- W3032539054 date "2020-05-06" @default.
- W3032539054 modified "2023-09-24" @default.
- W3032539054 title "Probing linearly polarized gluon distribution in electron-proton collision at EIC" @default.
- W3032539054 doi "https://doi.org/10.22323/1.374.0051" @default.
- W3032539054 hasPublicationYear "2020" @default.
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