Quark and Gluon Helicity Evolution at Small $x$: Revised and Updated

Florian Cougoulic, Yuri V. Kovchegov, Andrey Tarasov +1

We revisit the problem of small Bjorken-$x$ evolution of the gluon and flavor-singlet quark helicity distributions in the shock wave ($s$-channel) formalism. Earlier works on the s…