Diffractive dijet production with a leading proton in ep collisions at HERA

• Published in: The journal of high energy physics 2015-05, Vol.2015 (5), p.1, Article 56
• Main Authors: Andreev, V., Baghdasaryan, A., Begzsuren, K., Belousov, A., Belov, P., Brandt, G., Brinkmann, M., Brisson, V., Britzger, D., Buniatyan, A., Bystritskaya, L., Cantun Avila, K. B., Cerny, K., Chekelian, V., Contreras, J. G., Dainton, J. B., Daum, K., Diaconu, C., Dobre, M., Dossanov, A., Egli, S., Fedotov, A., Ferencei, J., Fleischer, M., Fomenko, A., Gabathuler, E., Gayler, J., Goerlich, L., Gogitidze, N., Gouzevitch, M., Greenshaw, T., Grindhammer, G., Haidt, D., Henderson, R. C. W., Herbst, M., Hladky, J., Hoffmann, D., Hreus, T., Janssen, X., Klein, M., Kleinwort, C., Kogler, R., Kostka, P., Kretzschmar, J., Krüger, K., Landon, M. P. J., Lange, W., Lebedev, A., Levonian, S., List, J., Lobodzinski, B., Malinovski, E., Martyn, H.-U., Mehta, A., Meyer, J., Morozov, A., Naumann, Th, Newman, P. R., Olsson, J. E., Ozerov, D., Pahl, P., Pascaud, C., Patel, G. D., Perez, E., Petrukhin, A., Picuric, I., Pirumov, H., Pitzl, D., Plačakytė, R., Pokorny, B., Polifka, R., Ravdandorj, T., Reimer, P., Rizvi, E., Roosen, R., Rostovtsev, A., Rotaru, M., Rusakov, S., Šálek, D., Sauvan, E., Schoeffel, L., Schultz-Coulon, H.-C., Shushkevich, S., Soloviev, Y., South, D., Specka, A., Steder, M., Straumann, U., Sykora, T., Truöl, P., Tsakov, I., Tseepeldorj, B., Turnau, J., Vallée, C., Van Mechelen, P., Wegener, D., Žáček, J., Zhang, Z., Žlebčík, R., Zomer, F.
• 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/JHEP05(2015)056

A bstract The cross section of the diffractive process e + p → e + Xp is measured at a centre-of-mass energy of 318 GeV, where the system X contains at least two jets and the leading final state proton p is detected in the H1 Very Forward Proton Spectrometer. The measurement is performed in photoproduction with photon virtualities Q 2 < 2 GeV 2 and in deep-inelastic scattering with 4 GeV 2 < Q 2 < 80 GeV 2 . The results are compared to next- to-leading order QCD calculations based on diffractive parton distribution functions as extracted from measurements of inclusive cross sections in diffractive deep-inelastic scattering.