Unitarization of Gluon Exchange Amplitudes and Rapidity Gaps at the Tevatron

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.

arXiv comment21 pages, Revtex, 7 postscript figures included via epsf.sty. Compressed postscript file of complete paper also available at http://pheno.physics.wisc.edu/pub/preprints/1998/madph-98-1024.ps.Z or at ftp://pheno.physics.wisc.edu/pub/preprints/1998/madph-98-1024.ps.Z

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• Large Rapidity Gaps in PP Collisions
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Cited by in corpus (5)

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• Energy and Color Flow in Dijet Rapidity Gaps
• Energy dependence of the survival probability of large rapidity gap
• Dijet Rapidity Gaps in Photoproduction from Perturbative QCD
• Color Evaporation Induced Rapidity Gaps