Unitarization of Gluon Exchange Amplitudes and Rapidity Gaps at the Tevatron

Details Unitarization of Gluon Exchange Amplitudes and Rapidity Gaps at the Tevatron Unitarization of Gluon Exchange Amplitudes and Rapidity Gaps at the Tevatron

1998-01-09

arxiv.org/abs/hep-ph/9801257v1

Phys.Rev. D58 (1998) 014003

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, Revtex, 7 postscript figures included via epsf.sty. Compressed postscript file of complete paper also available at

Scientific paper

10.1103/PhysRevD.58.014003

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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