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Diffractive dijet production at root s=630 and 1800 GeV at the Fermilab tevatron

Acosta, D; Affolder, T; Akimoto, H; Albrow, MG; Amaral, P; Ambrose, D; Amidei, D; ... CDF Collaboration, .; + view all (2002) Diffractive dijet production at root s=630 and 1800 GeV at the Fermilab tevatron. PHYS REV LETT , 88 (15) , Article 151802. 10.1103/PhysRevLett.88.151802. Green open access

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Abstract

We report a measurement of the diffractive structure function F-jj(D) of the antiproton obtained from a study of dijet events produced in association with a leading antiproton in (p) over barp collisions at roots = 630 GeV at the Fermilab Tevatron. The ratio of F-jj(D) at roots = 630 GeV to F-jj(D) obtained from a similar measurement at roots = 1800 GeV is compared with expectations from QCD factorization and other theoretical predictions. We also report a measurement of the xi (x-Pomeron) and beta (x of parton in Pomeron) dependence of F-jj(D) at roots = 1800 GeV . In the region 0.035 < &xi; < 0.095 , \t\ < 1 GeV2 , and &beta; < 0.5 , F-jj(D)(beta, xi) is found to be of the form beta(-1.0+/-0.1) xi(-0.9+/-0. 1) , which obeys beta-xi factorization.

Type: Article
Title: Diffractive dijet production at root s=630 and 1800 GeV at the Fermilab tevatron
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.88.151802
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.88.151802
Language: English
Keywords: HADRONIC DIFFRACTION, RAPIDITY GAPS, POMERON, COLLISIONS, HERA
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/353781
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