Accès ouvert déclaré
2017
preprint
Further studies of isolated photon production with a jet in deep inelastic scattering at HERA
ZEUS Collaboration, H Abramowicz, I. Abt, L. Adamczyk, M. Adamus, R. Aggarwal, S. Antonelli, V. Aushev, Y. Aushev, O. Behnke, U Behrens, A Bertolin, I Bloch, I. Brock, NH Brook, R Brugnera, A. Bruni, P. J. Bussey, A. Caldwell, M. Capua, C. D. Catterall, J. Chwastowski, J. Ciborowski, R. Ciesielski, A. M. Cooper-Sarkar, M Corradi, R. K. Dementiev, R. C. E. Devenish, S. Dusini, B Foster, G. Gach, E. Gallo, A Garfagnini, A Geiser, A. Gizhko, L. K. Gladilin, Yu. A. Golubkov, G. Grzelak, M. Guzik, C. Gwenlan, O. Hlushchenko, D. Hochman, І. Каденко, Z. A. Ibrahim, Y Iga, M. Ishitsuka, N. Z. Jomhari, I. Kadenko, S Kananov, U Karshon, P. Kaur, D Kisielewska, R. Klanner, U. Klein, I. A. Korzhavina, A Kotański, N. Kovalchuk, H Kowalski, B. Krupa, O. Kuprash, M. Kuze, B.B. Levchenko, A Levy, M . Lisovyi, E.Lobodzinska, B Löhr, E Lohrmann, A. Longhin, O. Yu. Lukina, J. Malka, A. Mastroberardino, F. Mohamad Idris, N. Mohammad Nasir, V. Myronenko, K . Nagano, Yu. Onishchuk, E Paul, W. Perlański, N.S. Pokrovskiy, A Polini, M. Przybycień, M Ruspa, D. H. Saxon, M Schioppa, U Schneekloth, T. Schörner-Sadenius, L.M. Shcheglova, O. Shkola, Yu. Shyrma, I. O. Skillicorn, W. Słomiński, A Solano, L. Stanco, N. Stefaniuk, A. Stern, P. Stopa, J. Sztuk-Damb ietz, E. Tassi, K. Tokushuku, J. Tomaszewska, T Tsurugai, M Turcato, O. Turkot, T Tymieniecka, A. Verbytskyi, W. A. T. WanAbdullah, K. Wichmann, M. Wing, S Yamada, Y. Yamazaki, A. F. Żarnecki, L. Zawiejski, O. Zenaiev, B.O. Zhautykov
2Citations signalées, ce qui n’est pas une note de qualité
0Institutions déclarées
0Pays d’affiliation déclarés
Le résumé fourni par la source
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
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
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Les sujets associés
Particle physics theoretical and experimental studiesHigh-Energy Particle Collisions ResearchQuantum Chromodynamics and Particle Interactions