Experimental results on diffraction at CDF

TL;DR

This paper presents experimental measurements of diffractive processes at the Tevatron collider, including structure functions, t-distributions, and various diffractive production channels, advancing understanding of diffraction in high-energy physics.

Contribution

It provides new experimental data on diffractive structure functions, t-distributions, and production processes, covering a wide range of Q^2 and diffractive event types.

Findings

Diffractive structure function measured up to Q^2=10,000 GeV^2.

t-distribution analyzed for |t|<1 GeV^2 in soft and hard diffraction.

Results on diffractive W/Z, jets, and exclusive production presented.

Abstract

Diffractive events are studied by means of identification of one or more rapidity gaps and/or a leading antiproton. Measurements of soft and hard diffractive processes have been performed at the Tevatron $p\bar p$ collider and presented. We report on the diffractive structure function obtained from dijet production in the range $0<Q^2<10,000$GeV$^2$, and on the $|t|$ distribution in the region $0<|t|<1$GeV$^2$ for both soft and hard diffractive events up to $Q^2\approx 4,500$GeV$^2$. Results on single diffractive W/Z production, forward jets, and central exclusive production of both dijets and Z-bosons are also presented.