Double Diffraction Dissociation at the Fermilab Tevatron Collider

Abstract

We present results from a measurement of double diffraction dissociation in $\bar{p}p$ collisions at the Fermilab Tevatron collider. The production cross section for events with a central pseudorapidity gap of width $\Delta {\eta }^0>3$ (overlapping $\eta =0$) is found to be $4.43\pm 0.02(stat)\pm 1.18(syst)mb$ [$3.42\pm 0.01(stat)\pm 1.09(syst)mb$] at $\sqrt{s}=1800$ [630] GeV. Our results are compared with previous measurements and with predictions based on Regge theory and factorization.

arXiv comment10 pages, 4 figures, using RevTeX. Submitted to Physical Review Letters

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