Gluon TMD in particle production from low to moderate x

Abstract

Abstract:We study the rapidity evolution of gluon transverse momentum dependent distributions appearing in processes of particle production and show how this evolution changes from small to moderate Bjorken x.

Proton spin structure at small-x

“…Compared to (28), there is a relative factor C F . Similarly, in the q → g channel, the singlet channel with one gluon loop gives…”

Effect of non-eikonal corrections on azimuthal asymmetries in the color glass condensate

“…Non-eikonal corrections at high energies have also been analysed in relation to Transverse Momentum Distributions and spin physics[63,64,65,66,67,68,69], and soft gluon exponentiation[70,71,72].…”

Rapidity evolution of gluon TMDs from low to moderate x

“…(The discussion is based on papers [4,5]). We assume k 2 ⊥ ≥ few GeV 2 so that we can use perturbative QCD, but otherwise k ⊥ is arbitrary and can be of order of s as in the DGLAP evolution.…”