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arXiv · hep-ph/9705310

Hard Processes with Spin-Dependent Parton Distributions

T. Yamanishi·T. Morii·D. Roy·K. Sudoh·S. Tanaka
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Abstract

To test a possible color-octet contribution of heavy quarkonium productions, we propose $ψ$'-productions for small-$p_T$ regions, where the color-singlet $ψ$' state cannot be produced by the gluon-gluon fusion owing to charge conjugation. We also point out that these processes are very useful to deduce informations of spin-dependent gluon distributions $Δg$.

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T. Yamanishi, T. Morii, D. Roy, K. Sudoh, S. Tanaka. 1997-05-14. Hard Processes with Spin-Dependent Parton Distributions. https://doi.org/10.1016/s0168-9002(97)00851-6

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