Document Type
Article
Publication Date
7-21-2009
Abstract
The dissociation of virtual photons, γ{star operator} p → X p, in events with a large rapidity gap between X and the outgoing proton, as well as in events in which the leading proton was directly measured, has been studied with the ZEUS detector at HERA. The data cover photon virtualities Q2 > 2 GeV2 and γ{star operator} p centre-of-mass energies 40 < W < 240 GeV, with MX > 2 GeV, where MX is the mass of the hadronic final state, X. Leading protons were detected in the ZEUS leading proton spectrometer. The cross section is presented as a function of t, the squared four-momentum transfer at the proton vertex and Φ, the azimuthal angle between the positron scattering plane and the proton scattering plane. It is also shown as a function of Q2 and xP, the fraction of the proton's momentum carried by the diffractive exchange, as well as β, the Bjorken variable defined with respect to the diffractive exchange. © 2009 Elsevier B.V.
Journal Title
Nuclear Physics B
Volume
816
Issue
1-2
First Page
1
Last Page
61
DOI
10.1016/j.nuclphysb.2009.03.003
First Department
Physics
Recommended Citation
Chekanov, S.; Derrick, M.; Magill, S.; Musgrave, B.; Nicholass, D.; Repond, J.; Yoshida, R.; Mattingly, Margarita C. K.; Antonioli, P.; Bari, G.; Bellagamba, L.; Boscherini, D.; Bruni, A.; Bruni, G.; Cara Romeo, G.; Cindolo, F.; Corradi, M.; Iacobucci, G.; Margotti, A.; Massam, T.; Nania, R.; Polini, A.; Antonelli, S.; Basile, M.; Bindi, M.; Cifarelli, L.; Contin, A.; Palmonari, F.; De Pasquale, S.; Sartorelli, G.; and Zichichi, A., "Deep Inelastic Scattering with Leading Protons or Large Rapidity Gaps at HERA" (2009). Faculty Publications. 1977.
https://digitalcommons.andrews.edu/pubs/1977
Acknowledgements
Retrieved March 3, 2021 from https://arxiv.org/pdf/0812.2003.pdf