Speaker
Peng Zhang
(Peking University)
Description
Fragmentation function of gluon to the spin-triplet color-singlet S-wave quarkonium has been calculated numerically earlier in 1992. However, the analytical result is absent because of the complex high dimensional integrals. With the development of the high-loop calculation, we consider to solve the problem with the IBP reduction. I will present our method and the final result, which is compatible with the numerical value before. Furthermore, we give the polarization results and the corresponding relative-$v^2$ corrections.
