Speaker
Reed Hodges
Description
We compare the relative contributions of light quark fragmentation and photon-gluon fusion to the production of polarized $J/\psi$ via semi-inclusive DIS. We use a TMD framework for fragmentation, and match the production cross sections onto NRQCD. Both color singlet and color octet mechanisms contribute. We plot the cross sections differential in $P_\perp$, for both unpolarized and longitudinally polarized $J/\psi$, in various kinematic regimes to find where each mechanism is dominant. This can help determine where the gluon TMD PDFs can be accessed, which will be relevant in the era of the upcoming EIC.
Primary author
Co-authors
Marston Copeland
(Duke University)
Rohit Gupta
(University of Arizona)
Sean Fleming
(University of Arizona)
Thomas Mehen
(Duke U.)
