Measurement of Feynman-$x$ spectra of photons and neutrons in the very forward direction in deep-inelastic scattering at HERA

Andreev, V.; Lebedev, A.; Nowak, G.; Dodonov, V.; Daum, K.; Gouzevitch, M.; Baghdasaryan, A.; Britzger, D.; Chekelian, V.; Dobre, M.; Rusakov, S.; Herbst, M.; Ghazaryan, S.; Salek, David; H1 Collaboration; Laycock, P.; Tru\ol, P.; Mehta, A.; Egli, S.; Picuric, I.; Campbell, Alan; Grab, C.; Olsson, J. E.; Kr\uger, K.; Tsakov, I.; Zlebcik, Radek; Hreus, T.; Zhang, Zhiqing; Nowak, K.; Ozerov, D.; Glazov, A.; Kapichine, M.; Cerny, K.; Huber, Florian; Meyer, J.; Lipka, K.; Spaskov, V.; Petrukhin, A.; Turnau, J.; Pahl, P.; Favart, L.; Jung, H.; Rizvi, E.; Pokorny, B.; Vazdik, Yakov; Jacquet, M.; Fleischer, M.; Malinovski, E.; Lobodzinski, B.; Hoffmann, D.; Martyn, H.-U.; Steder, M.; Eckerlin, G.; Roosen, R.; Pirumov, H.; Begzsuren, K.; Wegener, D.; Elsen, E.; Maxfield, Steve; Janssen, X.; Schoeffel, L.; Schultz-Coulon, H.-C.; Gayler, J.; Kleinwort, C.; Ravdandorj, T.; Newman, P. R.; Lytkin, L.; Goerlich, L.; Feltesse, J.; Brandt, G.; Shushkevich, S.; Fomenko, A.; Meyer, Andreas; Pitzl, D.; W\unsch, E.; List, B.; Thompson, Paul; Belov, P.; Radescu, V.; Levonian, S.; Van Mechelen, Pierre; List, J.; Grindhammer, G.; Horisberger, R.; Greenshaw, T.; Tseepeldorj, B.; Dainton, John; Buniatyan, A.; Kostka, P.; Reimer, P.; Kretzschmar, J.; Soloviev, Y.; Placakyte, Ringaile; Patel, Girish; Diaconu, C.; Klein, Max; Belousov, A.; Sch\oning, A.; Gabathuler, E.; Traynor, D.; Schmitt, Stefan; Ferencei, J.; Polifka, R.; Morozov, A.; Meyer, Hinrich; Valkarova, Alice; Sauvan, E.; Vallee, Claude; Hladky, Jan; Rostovtsev, A.; Straumann, U.; Pascaud, C.; Fedotov, A.; Sankey, David; Sauter, M.; Zacek, Jozef; Raicevic, Natasa; Gogitidze, N.; South, D.; Brinkmann, M.; Henderson, Robert; Grebenyuk, A.; Bystritskaya, L.; Perez, Emmanuelle; Mikocki, S.; Naumann, Th.; Dossanov, A.; Sykora, T.; Kogler, R.; Zomer, F.; Ceccopieri, F.; Bylinkin, A.; Sopicki, P.; Zohrabyan, H.; Haidt, D.; Lange, W.; Sefkow, F.; Brisson, V.; Contreras, J. Guillermo; Stella, B.; Rotaru, M.; Povh, B.; Cantun Avila, K. B.; Boudry, V.; Niebuhr, C.; M\uller, K.; Specka, A.; Kiesling, C.; Robmann, P.; Landon, Murrough

doi:10.1140/epjc/s10052-014-2915-2

%0 Journal Article
%A Andreev, V.
%A Baghdasaryan, A.
%A Begzsuren, K.
%A Belousov, A.
%A Belov, P.
%A Boudry, V.
%A Brandt, G.
%A Brinkmann, M.
%A Brisson, V.
%A Britzger, D.
%A Buniatyan, A.
%A Bylinkin, A.
%A Bystritskaya, L.
%A Campbell, Alan
%A Cantun Avila, K. B.
%A Ceccopieri, F.
%A Cerny, K.
%A Chekelian, V.
%A Contreras, J. Guillermo
%A Dainton, John
%A Daum, K.
%A Diaconu, C.
%A Dobre, M.
%A Dodonov, V.
%A Dossanov, A.
%A Eckerlin, G.
%A Egli, S.
%A Elsen, E.
%A Favart, L.
%A Fedotov, A.
%A Feltesse, J.
%A Ferencei, J.
%A Fleischer, M.
%A Fomenko, A.
%A Gabathuler, E.
%A Gayler, J.
%A Ghazaryan, S.
%A Glazov, A.
%A Goerlich, L.
%A Gogitidze, N.
%A Gouzevitch, M.
%A Grab, C.
%A Grebenyuk, A.
%A Greenshaw, T.
%A Grindhammer, G.
%A Haidt, D.
%A Henderson, Robert
%A Herbst, M.
%A Hladky, Jan
%A Hoffmann, D.
%A Horisberger, R.
%A Hreus, T.
%A Huber, Florian
%A Jacquet, M.
%A Janssen, X.
%A Jung, H.
%A Kapichine, M.
%A Kiesling, C.
%A Klein, Max
%A Kleinwort, C.
%A Kogler, R.
%A Kostka, P.
%A Kretzschmar, J.
%A Kr\uger, K.
%A Landon, Murrough
%A Lange, W.
%A Laycock, P.
%A Lebedev, A.
%A Levonian, S.
%A Lipka, K.
%A List, B.
%A List, J.
%A Lobodzinski, B.
%A Lytkin, L.
%A Malinovski, E.
%A Martyn, H.-U.
%A Maxfield, Steve
%A Mehta, A.
%A Meyer, Andreas
%A Meyer, Hinrich
%A Meyer, J.
%A Mikocki, S.
%A Morozov, A.
%A M\uller, K.
%A Naumann, Th.
%A Newman, P. R.
%A Niebuhr, C.
%A Nowak, G.
%A Nowak, K.
%A Olsson, J. E.
%A Ozerov, D.
%A Pahl, P.
%A Pascaud, C.
%A Patel, Girish
%A Perez, Emmanuelle
%A Petrukhin, A.
%A Picuric, I.
%A Pirumov, H.
%A Pitzl, D.
%A Pokorny, B.
%A Polifka, R.
%A Povh, B.
%A Radescu, V.
%A Raicevic, Natasa
%A Ravdandorj, T.
%A Reimer, P.
%A Rizvi, E.
%A Robmann, P.
%A Roosen, R.
%A Rostovtsev, A.
%A Rotaru, M.
%A Rusakov, S.
%A Salek, David
%A Sankey, David
%A Sauter, M.
%A Sauvan, E.
%A Schmitt, Stefan
%A Schoeffel, L.
%A Sch\oning, A.
%A Schultz-Coulon, H.-C.
%A Sefkow, F.
%A Shushkevich, S.
%A Soloviev, Y.
%A Sopicki, P.
%A South, D.
%A Spaskov, V.
%A Specka, A.
%A Steder, M.
%A Stella, B.
%A Straumann, U.
%A Sykora, T.
%A Thompson, Paul
%A Traynor, D.
%A Tru\ol, P.
%A Tsakov, I.
%A Tseepeldorj, B.
%A Turnau, J.
%A Valkarova, Alice
%A Vallee, Claude
%A Van Mechelen, Pierre
%A Vazdik, Yakov
%A Wegener, D.
%A W\unsch, E.
%A Zacek, Jozef
%A Zhang, Zhiqing
%A Zlebcik, Radek
%A Zohrabyan, H.
%A Zomer, F.
%A Placakyte, Ringaile
%T Measurement of Feynman-x spectra of photons and neutrons in the very forward direction in deep-inelastic scattering at HERA
%J The European physical journal / C
%V 74
%N DESY-14-035
%@ 1434-6044
%C Berlin
%I Springer
%M DESY-2014-03214
%M DESY-14-035
%M arXiv:1404.0201
%P 2915
%D 2014
%Z OA
%X 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<sub>F</sub> 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<sup>−1</sup>. The measurement is restricted to photons and neutrons in the pseudorapidity range η > 7.9 and covers the range of negative four momentum transfer squared at the positron vertex 6 < Q<sup>2</sup> < 100 GeV<sup>2</sup>, of inelasticity 0.05 < y < 0.6 and of 70 < W < 245 GeV. To test the Feynman scaling hypothesis the W dependence of the x<sub>F</sub> 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.
%K model: deep inelastic scattering (INSPIRE)
%K cross section: measured (INSPIRE)
%K photon: exclusive production (INSPIRE)
%K n: forward production (INSPIRE)
%K scaling: Feynman (INSPIRE)
%K DESY HERA Stor (INSPIRE)
%K momentum transfer dependence (INSPIRE)
%K positron p: deep inelastic scattering (INSPIRE)
%K energy dependence (INSPIRE)
%K x-dependence (INSPIRE)
%K hadron hadron: interaction (INSPIRE)
%K cross section: high energy behavior (INSPIRE)
%K H1 (INSPIRE)
%K experimental results (INSPIRE)
%K 319 GeV-cms (INSPIRE)
%F PUB:(DE-HGF)16 ; PUB:(DE-HGF)15
%9 Journal ArticleInternal Report
%R 10.1140/epjc/s10052-014-2915-2
%U https://bib-pubdb1.desy.de/record/171223

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