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arXiv · 1406.5476

Probing transverse momentum dependent gluon distribution functions from hadronic quarkonium pair production

Guang-Peng Zhang
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Abstract

The inclusive hadronic production of $η_Q$($η_c$ or $η_b$) pair is proposed to extract the transverse momentum dependent(TMD) gluon distribution functions. We use nonrelativistic QCD(NRQCD) for the production of $η_Q$. 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.

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Guang-Peng Zhang. 2014-06-20. Probing transverse momentum dependent gluon distribution functions from hadronic quarkonium pair production. https://doi.org/10.1103/physrevd.90.094011

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