Transversity 2022

cos2ϕ azimuthal asymmetry in a back-to-back J/ψ and jet electroproduction at the EIC

26 May 2022, 17:15

15m

Almo Collegio Borromeo, Pavia, Italy

Remote standard talk Plenary session

Speaker

Raj Kishore (IIT Kanpur)

Description

We present an estimate of the cos$2\varphi$ azimuthal asymmetry in back-to-back production of $J/\psi$ and a jet in the process: $ep\to eJ/\psi JetX$. We calculate the asymmetry using TMD factorization in a generalized parton model (GPM) framework and use non-relativistic QCD (NRQCD) to obtain the $J/\psi$ production rate. We incorporate both color singlet and color octet contributions to the asymmetry. This asymmetry will be useful to probe the linearly polarized gluon distribution at the future electron-ion collider (EIC). We present numerical estimates of the asymmetry using two recent parametrization of the gluon TMDs, namely spectator model and Gaussian parameterization. We investigate the effect of TMD evolution of gluon TMDs on the asymmetry.

Presentation materials

Transversity2022_raj.pdf