Authors

Document Type

Article

Publication Date

1-1-1998

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.

Journal Title

European Physical Journal C

Volume

2

Issue

2

First Page

237

Last Page

246

DOI

https://doi.org/10.1007/pl00021571

First Department

Physics

Acknowledgements

Open access article retrieved June 29, 2021 from https://link.springer.com/article/10.1007/PL00021571

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