Further studies of isolated photon production with a jet in deep inelastic scattering at HERA

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Abramowicz, H, Abt, I, Adamczyk, L, Adamus, M, Aggarwal, R, Antonelli, S, Aushev, V, Aushev, Y, Behnke, O, Behrens, U et al (show 104 more authors) , Bertolin, A, Bloch, I, Brock, I, Brook, NH, Brugnera, R, Bruni, A, Bussey, PJ, Caldwell, A, Capua, M, Catterall, CD, Chwastowski, J, Ciborowski, J, Ciesielski, R, Cooper-Sarkar, AM, Corradi, M, Dementiev, RK, Devenish, RCE, Dusini, S, Foster, B, Gach, G, Gallo, E, Garfagnini, A, Geiser, A, Gizhko, A, Gladilin, LK, Golubkov, Yu A, Grzelak, G, Guzik, M, Gwenlan, C, Hlushchenko, O, Hochman, D, Hori, R, Ibrahim, ZA, Iga, Y, Ishitsuka, M, Jomhari, NZ, Kadenko, I, Kananov, S, Karshon, U, Kaur, P, Kisielewska, D, Klanner, R, Klein, U ORCID: 0000-0001-7391-5330, Korzhavina, IA, Kotanski, A, Kovalchuk, N, Kowalski, H, Krupa, B, Kuprash, O, Kuze, M, Levchenko, BB, Levy, A, Lisovyi, M, Lobodzinska, E, Loehr, B, Lohrmann, E, Longhin, A, Lukina, O Yu, Malka, J, Mastroberardino, A, Idris, F Mohamad, Nasir, N Mohammad, Myronenko, V, Nagano, K, Onishchuk, Yu, Paul, E, Perlanski, W, Pokrovskiy, NS, Polini, A, Przybycien, M, Ruspa, M, Saxon, DH, Schioppa, M, Schneekloth, U, Schoerner-Sadenius, T, Shcheglova, LM, Shkola, O, Shyrma, Yu, Skillicorn, IO, Slominski, W, Solano, A, Stanco, L, Stefaniuk, N, Stern, A, Stopa, P, Sztuk-Dambietz, J, Tassi, E, Tokushuku, K, Tomaszewska, J, Tsurugai, T, Turcato, M, Turkot, O, Tymieniecka, T, Verbytskyi, A, Abdullah, WAT Wan, Wichmann, K, Wing, M, Yamada, S, Yamazaki, Y, Arnecki, AFZ, Zawiejski, L, Zenaiev, O, Zhautykov, BO and collaboration, ZEUS (2018) Further studies of isolated photon production with a jet in deep inelastic scattering at HERA. JOURNAL OF HIGH ENERGY PHYSICS, 2018 (1).

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Abstract

Isolated photons with high transverse energy have been studied in deep inelastic ep scattering with the ZEUS detector at HERA, using an integrated luminosity of 326 pb−1 in the range of exchanged-photon virtuality 10-350 GeV2. Outgoing isolated photons with transverse energy 4 < ETγ < 15 GeV and pseudorapidity − 0.7 < ηγ < 0.9 were measured with accompanying jets having transverse energy and pseudorapidity 2.5 < ETjet < 35 GeV and −1.5 < ηjet< 1.8, respectively. Differential cross sections are presented for the following variables: the fraction of the incoming photon energy and momentum that is transferred to the outgoing photon and the leading jet; the fraction of the incoming proton energy transferred to the photon and leading jet; the differences in azimuthal angle and pseudorapidity between the outgoing photon and the leading jet and between the outgoing photon and the scattered electron. Comparisons are made with theoretical predictions: a leading-logarithm Monte Carlo simulation, a next-to-leading-order QCD prediction, and a prediction using the kT -factorisation approach.

Item Type:	Article
Uncontrolled Keywords:	Lepton-Nucleon Scattering (experiments), Photon production, QCD
Depositing User:	Symplectic Admin
Date Deposited:	09 Mar 2018 11:00
Last Modified:	19 Jan 2023 06:38
DOI:	10.1007/JHEP01(2018)032
Open Access URL:	https://arxiv.org/pdf/1712.04273.pdf
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3018791