Measurement of the t distribution in diffractive photoproduction at HERA

ZEUS Collaboration; J Repond; U Mallik

doi:10.1007/PL00021571

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$Measurement of the t distribution in diffractive photoproduction at HERA$

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Measurement of the t distribution in diffractive photoproduction at HERA

ZEUS Collaboration, J Repond and U Mallik

The European physical journal. C, Particles and fields, Vol.2(2), pp.237-246

04/1998

DOI: 10.1007/PL00021571

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Abstract

Photon diffractive dissociation, γp → Xp, has been studied at HERA with the ZEUS detector using ep interactions where the virtuality Q2 of the exchanged photon is smaller than 0.02 GeV2. The squared four-momentum t exchanged at the proton vertex was determined in the range 0.073 < \t\ < 0.40 GeV2 by measuring the scattered proton in the ZEUS Leading Proton Spectrometer. In the photonproton centre-of-mass energy interval 176 < W < 225 GeV and for masses of the dissociated photon system 4 < Mx < 32 GeV, the t distribution has an exponential shape, dN/d\t\ ∝ exp (-b\t\), with a slope parameter b = 6.8 ± 0.9 (stat.) +1.2-1.1 (syst.) GeV-2.

Details

Title: Subtitle: Measurement of the t distribution in diffractive photoproduction at HERA
Creators: ZEUS Collaboration
J Repond (Contributor) - Physics and Astronomy
U Mallik (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: The European physical journal. C, Particles and fields, Vol.2(2), pp.237-246
DOI: 10.1007/PL00021571
ISSN: 1434-6044
eISSN: 1434-6052
Language: English
Date published: 04/1998
Academic Unit: Physics and Astronomy
Record Identifier: 9984627230102771

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