254 citations · 3.5k across the 63 of their papers we have counts for
3 papers · 1 filter
One-Loop Matching for Parton Distributions: Non-Singlet Case
Xiaonu Xiong, Xiangdong Ji, Jian-Hui Zhang +1
We derive one-loop matching condition for non-singlet quark distributions in transverse-momentum cut-off scheme, including unpolarized, helicity and transversity distributions. The…
Gluon Helicity Delta G from a Universality Class of Operators on a Lattice
Yoshitaka Hatta, Xiangdong Ji, Yong Zhao
We show that the total gluon helicity in a polarized nucleon can be calculated on a Euclidean lattice through a universality class of QCD operators that describe the helicity…
Physics of Gluon Helicity Contribution to Proton Spin
Xiangdong Ji, Jian-Hui Zhang, Yong Zhao
The total gluon helicity in a polarized proton, measurable in high-energy scattering, is shown to be the large momentum limit of a gauge-invariant but non-local, frame-dependent gl…