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

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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.
Report at the XIV International Seminar On High Energy Physics Problems "RELATIVISTIC NUCLEAR PHYSICS AND QUANTUM CHROMODYNAMICS" Dubna, August 17-22, 1998

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/48544

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ph/9811450
 http://arxiv.org/abs/hep-ph/9811450

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arXiv