Hard Processes with Spin-Dependent Parton Distributions

Details Hard Processes with Spin-Dependent Parton Distributions Hard Processes with Spin-Dependent Parton Distributions

1997-05-14

arxiv.org/abs/hep-ph/9705310v1

Nucl.Instrum.Meth. A402 (1998) 291-293

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages + 3 Postscript figures(2 PS files), LaTeX, Talk presented at International Workshop HELION97, Kobe, Japan, 20-24 Jan.

Scientific paper

10.1016/S0168-9002(97)00851-6

To test a possible color-octet contribution of heavy quarkonium productions,
we propose $\psi$'-productions for small-$p_T$ regions, where the color-singlet
$\psi$' 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 $\Delta g$.

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