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Nonperturbative QCD Effects in High Energy Collisions

Otto Nachtmann
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Abstract

High energy hadron-hadron collisions are discussed. It is argued that soft collisions should involve in an essential way nonperturbative QCD. A way is outlined how to calculate properties of high energy elastic hadron-hadron scattering using field theoretic methods. The functional integrals occuring there are evaluated using the ``stochastic vacuum model''. A satisfactory comparison between theory and experiment is achieved. Then the question of possible nonperturbative QCD effects in high energy hard hadron-hadron collisions is raised. It is shown that some spin effects in the Drell-Yan process may give a hint that such effects exist indeed in nature.

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Otto Nachtmann. 1994-11-21. Nonperturbative QCD Effects in High Energy Collisions. https://arxiv.org/abs/hep-ph/9411345

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