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arXiv · hep-ph/9811450

Large - Distance Effects in QCD and Spin Asymmetries in Diffractive Reactions

S. V. Goloskokov
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Abstract

Large - distance effects in the hadron wave function for the hadron-Pomeron vertex in the QCD -model are discussed. It is shown that they lead to the spin-flip part of the Pomeron coupling which can reach $10 ÷20 %$ with respect to the non-flip part. The obtained structure of the Pomeron coupling modifies spin asymmetries in high--energy diffractive reactions where the Pomeron structure becomes determinative. We study spin asymmetries in exclusive reactions and in the diffractive $Q \bar Q$ and $J/Ψ$ production. We have found that spin effects in these diffractive processes are sensitive to the spin-flip part of the Pomeron coupling.

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S. V. Goloskokov. 1998-11-24. Large - Distance Effects in QCD and Spin Asymmetries in Diffractive Reactions. https://arxiv.org/abs/hep-ph/9811450

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