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Could the gluon contribution to the proton spin be probed?

R. Escribano
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Abstract

Central pseudoscalar production in $pp$ scattering is suppressed at small values of $Q_\perp$. Such a behavior is expected if the production occurs through the fusion of two vectors. We argue that an extension of the experiment could probe the gluon contribution to the proton spin.

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R. Escribano. 1998-08-31. Could the gluon contribution to the proton spin be probed?. https://arxiv.org/abs/hep-ph/9808495

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