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arXiv · hep-ph/9403334

How to probe the spin-dependent gluon distributions

T. Morii·S. Tanaka·T. Yamanishi
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Abstract

Two-spin asymmetries $A_{LL}^{π^0}$ are calculated for various types of spin-dependent gluon distributions. It is concluded that the E581/704 data on $A_{LL}^{π^0}$ do not necessarily rule out the large gluon polarization but restrict severely the $x$ dependence of its distribution. Moreover, $A_{LL}^{J/ψ}$ are calculated for the forthcoming test of spin-dependent gluon distributions.

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T. Morii, S. Tanaka, T. Yamanishi. 1994-03-22. How to probe the spin-dependent gluon distributions. https://arxiv.org/abs/hep-ph/9403334

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