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arXiv · hep-ph/9801257

Unitarization of Gluon Exchange Amplitudes and Rapidity Gaps at the Tevatron

R. Oeckl·D. Zeppenfeld
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Abstract

Rapidity gaps between two hard jets at the Tevatron have been interpreted as being due to the exchange of two gluons which are in an overall color-singlet state. We show that this simple picture involves unitarity violating amplitudes. Unitarizing the gluon exchange amplitude leads to qualitatively different predictions for the fraction of $t$-channel color singlet exchange events in forward $qq$, $qg$ or $gg$ scattering, which better fit Tevatron data.

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R. Oeckl, D. Zeppenfeld. 1998-01-09. Unitarization of Gluon Exchange Amplitudes and Rapidity Gaps at the Tevatron. https://doi.org/10.1103/physrevd.58.014003

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