Paper
Probing transverse momentum dependent gluon distribution functions from hadronic quarkonium pair production
Authors
Guang-Peng Zhang
Abstract
The inclusive hadronic production of ( or ) pair is proposed to extract the transverse momentum dependent(TMD) gluon distribution functions. We use nonrelativistic QCD(NRQCD) for the production of . Under nonrelativistic limit TMD factorization for this process is assumed to make a lowest order calculation. For unpolarized initial hadrons, unpolarized and linearly polarized gluon distributions can be extracted by studying different angular distributions.