# Measurement of Feynman-x Spectra of Photons and Neutrons in the Very Forward Direction in Deep-Inelastic Scattering at HERA

Abstract : 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 $131 \mathrm{pb}^{-1}$. 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
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00969473
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Submitted on : Wednesday, April 2, 2014 - 2:10:22 PM
Last modification on : Thursday, November 19, 2020 - 3:52:11 PM

### Citation

V. Andreev, V. Brisson, M. Jacquet, C. Pascaud, Zhiqing Zhang, et al.. Measurement of Feynman-x Spectra of Photons and Neutrons in the Very Forward Direction in Deep-Inelastic Scattering at HERA. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2014, 74, pp.2915. ⟨10.1140/epjc/s10052-014-2915-2⟩. ⟨in2p3-00969473⟩

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