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Title
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Measurement of Feynman-x spectra of photons and neutrons in the very forward direction in deep-inelastic scattering at HERA
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Author
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Abstract
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| Measurements of normalised cross sections for the production of photons and neutrons at very small angles with respect to the proton beam direction in deep-inelastic ep scattering at HERA are presented as a function of the Feynman variable x(F) and of the centre-of-mass energy of the virtual photon-proton system W. The data are taken with the H1 detector in the years 2006 and 2007 and correspond to an integrated luminosity of 131 pb(-1). The measurement is restricted to photons and neutrons in the pseudorapidity range eta > 7.9 and covers the range of negative four momentum transfer squared at the positron vertex 6 < Q(2) < 100 GeV2, of inelasticity 0.05 < y < 0.6 and of 70 < W < 245 GeV. To test the Feynman scaling hypothesis the W dependence of the xF dependent cross sections is investigated. Predictions of deep-inelastic scattering models and of models for hadronic interactions of high energy cosmic rays are compared to the measured cross sections. |
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Language
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English
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Source (journal)
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European physical journal : C : particles and fields. - Berlin
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Publication
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Berlin
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2014
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ISSN
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1434-6044
1434-6052
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DOI
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10.1140/EPJC/S10052-014-2915-2
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Volume/pages
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74
:6
(2014)
, 17 p.
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Article Reference
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2915
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ISI
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000338331000002
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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