Further studies of the photoproduction of isolated photons with a jet at HERA

Abramowicz, H.; Abt, I.; Adamczyk, L.; Adamus, M.; Aggarwal, R.; Antonelli, S.; Arslan, O.; Aushev, V.; Aushev, Y.; Bachynska, O.; Barakbaev, A. N.; Bartosik, N.; Behnke, O.; Behr, J.; Behrens, U.; Bertolin, A.; Bhadra, S.; Bloch, I.; Bokhonov, V.; Boos, E.G.; Borras, K.; Brock, I.; Brugnera, R.; Bruni, A.; Brzozowska, B.; Bussey, P.; Caldwell, A.; Capua, M.; Catterall, C. D.; Chwastowski, J. J.; Ciborowski, J.; Ciesielski, R.; Cooper-Sarkar, A. M.; Corradi, M.; Corriveau, F.; D’Agostini, G.; Dementiev, R. K.; Devenish, R. C. E.; Dolinska, G.; Drugakov, V.; Dusini, S.; Ferrando, J.; Figiel, J.; Foster, B.; Gach, G. P.; Garfagnini, A.; Geiser, A.; Gizhko, A.; Gladilin, L. K.; Gogota, O.; Golubkov, Yu. A.; Grebenyuk, J.; Gregor, I. M.; Grzelak, G.; Gueta, O.; Guzik, M. P.; Hain, W.; Hartner, G.; Hochman, D.; Hori, R.; Ibrahim, Zainol Abidin; Iga, Y.; Ishitsuka, M.; Iudin, A.; Januschek, F.; Каденко, І.; Kananov, S.; Kanno, T.; Karshon, U.; Kaur, M.; Kaur, P.; Khein, L. A.; Kisielewska, D.; Klanner, R.; Klein, U.; Kondrashova, N.; Kononenko, O.; Korol, Ie.; Korzhavina, I. A.; Kotański, A.; Kötz, U.; Kovalchuk, N.; Kowalski, H.; Kuprash, O.; Kuze, M.; Levchenko, B. B.; Levy, A.; Libov, V.; Limentani, S.; Lisovyi, M.; Lobodzinska, E.; Lohmann, W.; Löhr, B.; Lohrmann, E.; Longhin, A.; Lontkovskyi, D.; Lukina, Olga; Maeda, J.; Makarenko, I.; Malka, J.; Martin, J. F.; Mergelmeyer, S.; Idris, F. Mohamad; Mujkic, K.; Myronenko, V.; Nagano, K.; Nigro, A.; Nobe, T.; Notz, D.; Nowak, R. J.; Olkiewicz, K.; Onishchuk, Y.; Paul, E.; Perlański, W.; Perrey, H.; Pokrovskiy, N. S.; Proskuryakov, A.S.; Przybycień, M.; Raval, A.; Roloff, P.; Rubinsky, I.; Ruspa, M.; Samojlov, V.; Saxon, D. H.; Schioppa, M.; Schmidke, W. B.; Schneekloth, U.; Schörner-Sadenius, T.; Schwartz, J.; Shcheglova, L.M.; Shevchenko, R.; Shkola, O.; Singh, Inderpal; Skillicorn, I. O.; Słomiński, W.; Sola, V.; Solano, A.; Спиридонов, А.; Stančo, L.; Stefaniuk, N.; Stern, A.; Stewart, T. P.; Stopa, P.; Sztuk-Dambietz, J.; Szuba, D.; Szuba, J.; Tassi, E.; Temiraliev, T.; Tokushuku, K.; Tomaszewska, J.; Trofymov, A.; Trusov, V.; Tsurugai, T.; Turcato, M.; Turkot, O.; Tymieniecka, T.; Verbytskyi, A.; Viazlo, O.; Walczak, R.; Abdullah, Wan Ahmad Tajuddin Wan; Wichmann, K.; Wing, M.; Wolf, G.; Yamada, S.; Yamazaki, Y.; Zakharchuk, N.; Żarnecki, Aleksander Filip; Zawiejski, L.; Zenaiev, O.; Zhautykov, B.O.; Zhmak, N.; Zotkin, D.S.

doi:10.1007/jhep08(2014)023

Cited by 4 publications

(2 citation statements)

References 56 publications

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“…A similar ZEUS analysis has been previously performed for photoproduction [44], studying all the present variables except those associated with the scattered electron.…”

Section: Jhep01(2018)032mentioning

confidence: 97%

“…The calibration of the energies of the photon and scattered electron was taken from an earlier ZEUS analysis and used deeply virtual Compton scattering events [44]. The reconstructed transverse energy of the photon candidate, E γ T , was required to lie within the range 4 4 < E γ T < 15 GeV and the pseudorapidity, η γ , had to satisfy −0.7 < η γ < 0.9.…”

Section: Jhep01(2018)032mentioning

confidence: 99%

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

Abramowicz

Abt

Adamczyk

et al. 2018

J. High Energ. Phys.

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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 GeV 2 . Outgoing isolated photons with transverse energy 4 < E γ T < 15 GeV and pseudorapidity −0.7 < η γ < 0.9 were measured with accompanying jets having transverse energy and pseudorapidity 2.5 < E jet T < 35 GeV and −1.5 < η jet < 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 k T -factorisation approach.

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“…A similar ZEUS analysis has been previously performed for photoproduction [44], studying all the present variables except those associated with the scattered electron.…”

Section: Jhep01(2018)032mentioning

confidence: 97%

Section: Jhep01(2018)032mentioning

confidence: 99%

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

Abramowicz

Abt

Adamczyk

et al. 2018

J. High Energ. Phys.

Self Cite

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Jet production and measurements ofα_sat HERA

Daniel¹

2015

EPJ Web of Conferences

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Abstract. Results on the measurements of the hadronic final state in e ± p collisions by the H1 and ZEUS experiments at HERA are presented. These are measurements on the production of prompt photons in photoproduction, inclusive jet, dijet and trijet production in deep-inelatic scattering and on the search for QCD instantons. The jet production data is employed for the extraction of the strong coupling constant α s (M Z ).

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