Speaker
Description
We propose an estimate of cos(2$\phi$) azimuthal asymmetry in $J/\psi$ electroproduction, in an unpolarized electron-proton scattering process. We have used a non-relativistic QCD (NRQCD) framework for the $J/\psi$ production rate. Within the kinematical range of the proposed Electron-Ion Collider (EIC), this can investigate the linearly polarised gluon distribution in the unpolarized proton. We compute the azimuthal asymmetry in the kinematic region: $z < 1$, where the leading contribution comes from the photon-gluon fusion subprocess: $\gamma^*g\rightarrow Q\bar{Q}+g$. We use two alternative models for TMDs to give the numerical estimate of the asymmetry: (1) the Gaussian-type parameterization and (2) the McLerran-Venugopalan model at small-$x$.
