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Spin effects in vector meson and $Q \bar Q$ production

S. V. Goloskokov
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Abstract

We study light hadron leptoproduction at small $x$. Vector meson production is analysed in terms of generalized gluon distributions with taking into account the transverse quark motion. Within a two-gluon model the double spin asymmetries for longitudinally polarized leptons and transversely polarized protons in the diffractive $Q \bar Q$ production are investigated. The predicted $A_{lT}$ asymmetry is large and can be used to obtain information on the polarized gluon distributions in the proton.

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S. V. Goloskokov. 2003-11-26. Spin effects in vector meson and $Q \bar Q$ production. https://arxiv.org/abs/hep-ph/0311340

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