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Measurement of dijet cross sections in ep interactions with a leading neutron at HERA

Aktas, A; Andreev, V; Anthonis, T; Aplin, S; Asmone, A; Babaev, A; Backovic, S; Bahr, J; Baghdasaryan, A and Baranov, P, et al. (2005) In European Physical Journal C. Particles and Fields 41(3). p.273-286
Abstract
Measurements are reported of the production of dijet events with a leading neutron in ep interactions at HERA. Differential cross sections for photoproduction and deep inelastic scattering are presented as a function of several kinematic variables. Leading order QCD simulation programs are compared with the measurements. Models in which the real or virtual photon interacts with a parton of an exchanged pion are able to describe the data. Next-to-leading order perturbative QCD calculations based on pion exchange are found to be in good agreement with the measured cross sections. The fraction of leading neutron dijet events with respect to all dijet events is also determined. The dijet events with a leading neutron have a lower fraction of... (More)
Measurements are reported of the production of dijet events with a leading neutron in ep interactions at HERA. Differential cross sections for photoproduction and deep inelastic scattering are presented as a function of several kinematic variables. Leading order QCD simulation programs are compared with the measurements. Models in which the real or virtual photon interacts with a parton of an exchanged pion are able to describe the data. Next-to-leading order perturbative QCD calculations based on pion exchange are found to be in good agreement with the measured cross sections. The fraction of leading neutron dijet events with respect to all dijet events is also determined. The dijet events with a leading neutron have a lower fraction of resolved photon processes than do the inclusive dijet data. (Less)
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European Physical Journal C. Particles and Fields
volume
41
issue
3
pages
273 - 286
publisher
Springer
external identifiers
  • wos:000231123500001
  • scopus:21544436594
ISSN
1434-6044
DOI
10.1140/epjc/s2005-02227-8
language
English
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yes
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5a73a88f-4eb0-41fc-9df4-037e073a7ce8 (old id 228532)
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2007-08-17 12:49:23
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  abstract     = {Measurements are reported of the production of dijet events with a leading neutron in ep interactions at HERA. Differential cross sections for photoproduction and deep inelastic scattering are presented as a function of several kinematic variables. Leading order QCD simulation programs are compared with the measurements. Models in which the real or virtual photon interacts with a parton of an exchanged pion are able to describe the data. Next-to-leading order perturbative QCD calculations based on pion exchange are found to be in good agreement with the measured cross sections. The fraction of leading neutron dijet events with respect to all dijet events is also determined. The dijet events with a leading neutron have a lower fraction of resolved photon processes than do the inclusive dijet data.},
  author       = {Aktas, A and Andreev, V and Anthonis, T and Aplin, S and Asmone, A and Babaev, A and Backovic, S and Bahr, J and Baghdasaryan, A and Baranov, P and Barrelet, E and Bartel, W and Baudrand, S and Baumgartner, S and Becker, J and Beckingham, M and Behnke, O and Behrendt, O and Belousov, A and Berger, C and Berger, N and Bizot, JC and Boenig, MO and Boudry, V and Bracinik, J and Brandt, G and Brisson, V and Brown, DP and Bruncko, D and Busser, FW and Bunyatyan, A and Buschhorn, G and Bystritskaya, L and Campbell, AJ and Caron, S and Cassol-Brunner, F and Cerny, K and Chekelian, V and Contreras, JG and Coughlan, JA and Cox, BE and Cozzika, G and Cvach, J and Dainton, JB and Dau, WD and Daum, K and Delcourt, B and Demirchyan, R and DeRoeck, A and Desch, K and DeWolf, EA and Diaconu, C and Dodonov, V and Dubak, A and Eckerlin, G and Efremenko, V and Egli, S and Eichler, R and Eisele, F and Ellerbrock, M and Elsen, E and Erdmann, W and Essenov, S and Faulkner, PJW and Favart, L and Fedotov, A and Felst, R and Ferencei, J and Finke, L and Fleischer, M and Fleischmann, P and Fleming, YH and Flucke, G and Fomenko, A and Foresti, I and Formanek, A and Franke, G and Frising, G and Frisson, T and Gabathuler, E and Garutti, E and Gayler, J and Gerhards, R and Gerlich, C and Ghazaryan, S and Ginzburgskaya, S and Glazov, A and Glushkov, I and Goerlich, L and Goettlich, M and Gogitidze, N and Gorbounov, S and Goyon, C and Grab, C and Greenshaw, T and Gregori, M and Grindhammer, G and Gwilliam, C and Haidt, D and Hajduk, L and Haller, J and Hansson, Magnus and Heinzelmann, G and Henderson, RCW and Henschel, H and Henshaw, O and Herrera, G and Herynek, I and Heuer, RD and Hildebrandt, M and Hiller, KH and Hoffmann, D and Horisberger, R and Hovhannisyan, A and Ibbotson, M and Ismail, M and Jacquet, M and Janauschek, L and Janssen, X and Jemanov, V and Jönsson, Leif and Johnson, DP and Jung, Hannes and Kapichine, M and Karlsson, M and Katzy, J and Keller, N and Kenyon, IR and Kiesling, C and Klein, M and Kleinwort, C and Klimkovich, T and Kluge, T and Knies, G and Knutsson, Albert and Korbel, V and Kostka, P and Koutouev, R and Krastev, K and Kretzschmar, J and Kropivnitskaya, A and Kruger, KK and Kuckens, JK and Landon, MPJ and Lange, W and Lastovicka, T and Laycock, P and Lebedev, A and Leissner, B and Lendermann, V and Levonian, S and Lindfeld, L and Lipka, K and List, B and Lobodzinska, E and Loktionova, N and Lopez-Fernandez, R and Lubimov, V and Lucaci-Timoce, AI and Lueders, H and Luke, D and Lux, T and Lytkin, L and Makankine, A and Malden, N and Malinovski, E and Mangano, S and Marage, P and Marshall, R and Martisikova, M and Martyn, HU and Maxfield, SJ and Meer, D and Mehta, A and Meier, K and Meyer, AB and Meyer, H and Meyer, J and Milcewicz-Mika, I and Milstead, D and Mohamed, A and Moreau, F and Morozov, A and Morris, JV and Mozer, MU and Muller, K and Murin, P and Nankov, K and Naroska, B and Naumann, J and Naumann, T and Newman, PR and Niebuhr, C and Nikiforov, A and Nikitin, D and Nowak, G and Nozicka, M and Oganezov, R and Olivier, B and Olsson, JE and Osman, Sakar and Ozerov, D and Pascaud, C and Patel, GD and Peez, M and Perez, E and Perez-Astudillo, D and Perieanu, A and Petrukhin, A and Pitzl, D and Placakyte, R and Poschl, R and Portheault, B and Povh, B and Prideaux, P and Raicevic, N and Reimer, P and Rimmer, A and Risler, C and Rizvi, E and Robmann, P and Roland, B and Roosen, R and Rostovtsev, A and Rurikova, Z and Rusakov, S and Salvaire, F and Sankey, DPC and Sauvan, E and Schatzel, S and Scheins, J and Schilling, FP and Schmidt, S and Schmitz, C and Schoeffel, L and Schoning, A and Schroder, V and Schultz-Coulon, HC and Schwanenberger, C and Sedlak, K and Sefkow, F and Sheviakov, I and Shtarkov, LN and Sirois, Y and Sloan, T and Smirnov, P and Soloviev, Y and South, D and Spaskov, V and Specka, A and Stella, B and Stiewe, J and Strauch, I and Straumann, U and Tchoulakov, V and Thompson, G and Thompson, PD and Tomasz, F and Traynor, D and Truol, P and Tsakov, I and Tsipolitis, G and Tsurin, I and Turnau, J and Tzamariudaki, E and Urban, M and Usik, A and Utkin, D and Valkar, S and Valkarova, A and Vallee, C and Van Mechelen, P and Van Remortel, N and Trevino, AV and Vazdik, Y and Veelken, C and Vest, A and Vinokurova, S and Volchinski, V and Vujicic, B and Wacker, K and Wagner, J and Weber, G and Weber, R and Wegener, D and Werner, C and Werner, N and Wessels, M and Wessling, B and Wigmore, C and Winter, GG and Wissing, C and Wolf, R and Wunsch, E and Xella, S and Yan, W and Yeganov, V and Zacek, J and Zalesak, J and Zhang, Z and Zhelezov, A and Zhokin, A and Zimmermann, J and Zohrabyan, H and Zomer, F},
  issn         = {1434-6044},
  language     = {eng},
  number       = {3},
  pages        = {273--286},
  publisher    = {Springer},
  series       = {European Physical Journal C. Particles and Fields},
  title        = {Measurement of dijet cross sections in ep interactions with a leading neutron at HERA},
  url          = {http://dx.doi.org/10.1140/epjc/s2005-02227-8},
  volume       = {41},
  year         = {2005},
}