Measurement of exclusive π+π−π+π− and ρ0ρ0 meson photoproduction at HERA

Autor: Andreev, V, Baty, A, Baghdasaryan, A, Begzsuren, K, Belousov, A, Bolz, A, Boudry, V, Brandt, G, Britzger, D, Buniatyan, A, Bystritskaya, L, Campbell, AJ, Avila, KB Cantun, Cerny, K, Chekelian, V, Chen, Z, Contreras, JG, Cvach, J, Dainton, JB, Daum, K, Deshpande, A, Diaconu, C, Eckerlin, G, Egli, S, Elsen, E, Favart, L, Fedotov, A, Feltesse, J, Fleischer, M, Fomenko, A, Gal, C, Gayler, J, Goerlich, L, Gogitidze, N, Gouzevitch, M, Grab, C, Grebenyuk, A, Greenshaw, T, Grindhammer, G, Haidt, D, Henderson, RCW, Hladky, J, Hoffmann, D, Horisberger, R, Hreus, T, Huber, F, Jacquet, M, Janssen, X, Jung, AW, Jung, H, Kapichine, M, Katzy, J, Kiesling, C, Klein, M, Kleinwort, C, Kogler, R, Kostka, P, Kretzschmar, J, Kruecker, D, Krueger, K, Landon, MPJ, Lange, W, Laycock, P, Lebedev, A, Levonian, S, Lipka, K, List, B, List, J, Li, W, Lobodzinski, B, Malinovski, E, Martyn, H-U, Maxfield, SJ, Mehta, A, Meyer, AB, Meyer, H, Meyer, J, Mikocki, S, Mondal, MM, Morozov, A, Muller, K, Naumann, Th, Newman, PR, Niebuhr, C, Nowak, G, Olsson, JE, Ozerov, D, Park, S, Pascaud, C, Patel, GD, Perez, E, Petrukhin, A, Picuric, I, Pitzl, D, Polifka, R, Radescu, V, Raicevic, N, Ravdandorj, T, Reimer, P, Rizvi, E, Robmann, P, Roosen, R, Rostovtsev, A, Rotaru, M, Sankey, DPC, Sauter, M, Sauvan, E, Schmitt, S, Schmookler, BA, Schoeffel, L, Schoening, A, Sefkow, F, Shushkevich, S, Soloviev, Y, Sopicki, P, South, D, Spaskov, V, Specka, A, Steder, M, Stella, B, Straumann, U, Sykora, T, Thompson, PD, Traynor, D, Truol, P, Tseepeldorj, B, Tu, Z, Valkarova, A, Vallee, C, Van Mechelen, P, Wegener, D, Wuensch, E, Zacek, J, Zhang, J, Zhang, Z, Zlebcik, R, Zohrabyan, H, Zomer, F, Collaboration, H1
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: EUROPEAN PHYSICAL JOURNAL C
Popis: Exclusive photoproduction of ρ0(770) mesons is studied using the H1 detector at the ep collider HERA. A sample of about 900,000 events is used to measure single- and double-differential cross sections for the reaction γp→π+π−Y. Reactions where the proton stays intact (mY=mp) are statistically separated from those where the proton dissociates to a low-mass hadronic system (mp
Databáze: OpenAIRE