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Jet Production via Strongly-Interacting Color-Singlet Exchange in $p\bar{p}$ Collisions

S. Abachi
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Abstract

A study of the particle multiplicity between jets with large rapidity separation has been performed using the DØdetector at the Fermilab Tevatron $p\bar{p}$ Collider operating at $\sqrt{s}=1.8$ TeV. A significant excess of low-multiplicity events is observed above the expectation for color-exchange processes. The measured fractional excess is $1.07 \pm 0.10({\rm stat})^{+ 0.25}_{- 0.13}({\rm syst})%$, which is consistent with a strongly-interacting color-singlet (colorless) exchange process and cannot be explained by electroweak exchange alone. A lower limit of 0.80% (95% C.L.) is obtained on the fraction of dijet events with color-singlet exchange, independent of the rapidity gap survival probability.

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S. Abachi. 1995-09-29. Jet Production via Strongly-Interacting Color-Singlet Exchange in $p\bar{p}$ Collisions. https://doi.org/10.1103/physrevlett.76.734

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