Measurement of dijet production in diffractive deep-inelastic ep scattering at HERA

• Published in: The journal of high energy physics 2015-03, Vol.2015 (3), p.1, Article 92
• Main Authors: Andreev, V., Baghdasaryan, A., Begzsuren, K., Belousov, A., Boudry, V., Brandt, G., Britzger, D., Buniatyan, A., Bystritskaya, L., Campbell, A. J., Cantun Avila, K. B., Cerny, K., Chekelian, V., Contreras, J. G., Cvach, J., Daum, K., Diaconu, C., Dobre, M., Dodonov, V., Egli, S., Fedotov, A., Feltesse, J., Ferencei, J., Fomenko, A., Gabathuler, E., Gayler, J., Ghazaryan, S., Glazov, A., Goerlich, L., Gogitidze, N., Gouzevitch, M., Grab, C., Grebenyuk, A., Greenshaw, T., Haidt, D., Herbst, M., Hladky, J., Horisberger, R., Hreus, T., Janssen, X., Kapichine, M., Kiesling, C., Klein, M., Kleinwort, C., Kostka, P., Kretzschmar, J., Krüger, K., Landon, M. P. J., Lange, W., Laycock, P., Lebedev, A., Levonian, S., Lipka, K., List, J., Malinovski, E., Martyn, H.-U., Maxfield, S. J., Mehta, A., Meyer, A. B., Meyer, J., Morozov, A., Müller, K., Naumann, Th, Newman, P. R., Niebuhr, C., Ozerov, D., Pahl, P., Perez, E., Petrukhin, A., Pirumov, H., Pitzl, D., Plačakytė, R., Pokorny, B., Polifka, R., Ravdandorj, T., Reimer, P., Rizvi, E., Robmann, P., Roosen, R., Šálek, D., Sankey, D. P. C., Sauter, M., Sauvan, E., Schmitt, S., Shushkevich, S., Sopicki, P., South, D., Spaskov, V., Specka, A., Sykora, T., Thompson, P. D., Traynor, D., Truöl, P., Tsakov, I., Wegener, D., Wünsch, E., Žáček, J., Zhang, Z., Žlebčík, R., Zohrabyan, H.
• Format: Article
• Language: English
• Subjects: Classical and Quantum Gravitation; Elementary Particles; High energy physics; High Energy Physics - Experiment; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Regular Article - Experimental Physics; Relativity Theory; String Theory
• ISSN: 1029-8479; 1126-6708; 1029-8479
• DOI: 10.1007/JHEP03(2015)092

A bstract A measurement is presented of single- and double-differential dijet cross sections in diffractive deep-inelastic ep scattering at HERA using data collected by the H1 experiment corresponding to an integrated luminosity of 290 pb −1 . The investigated phase space is spanned by the photon virtuality in the range of 4 < Q 2 < 100 GeV 2 and by the fractional proton longitudinal momentum loss x ℙ < 0 . 03. The resulting cross sections are compared with next-to-leading order QCD predictions based on diffractive parton distribution functions and the value of the strong coupling constant is extracted.