Isolated photon production in deep inelastic ep scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 320 pb(-1). Measurements were made in the isolated-photon transverse-energy and pseudorapidity ranges 4 < E(T)(gamma) < 15 GeV and 0.7 < eta(gamma) < 0.9 for exchanged photon virtualities, Q(2), in the range 10 < Q(2) < 350 GeV(2) and for invariant masses of the hadronic system W(X) > 5 GeV. Differential cross sections are presented for inclusive isolated photon production as functions of Q(2), x, E(T)(gamma) and eta(gamma). Leading-logarithm parton-shower Monte Carlo simulations and perturbative QCD predictions give a reasonable description of the data over most of the kinematic range. (C) 2010 Elsevier B.V. All rights reserved.

Measurement of isolated photon production in deep inelastic ep scattering ZEUS Collaboration / S., C., M., D., S., M., B., M., D., N., J., R., R., Y., Mck, M., P., A., G., B., L., B., D., B., A., B., G., B., F., C., M., C., G., I., A., M., R., N., A., P., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 687:(2010), pp. 16-25. [10.1016/j.physletb.2010.02.045]

Measurement of isolated photon production in deep inelastic ep scattering ZEUS Collaboration

D'AGOSTINI, Giulio;NIGRO, Andrea;
2010

Abstract

Isolated photon production in deep inelastic ep scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 320 pb(-1). Measurements were made in the isolated-photon transverse-energy and pseudorapidity ranges 4 < E(T)(gamma) < 15 GeV and 0.7 < eta(gamma) < 0.9 for exchanged photon virtualities, Q(2), in the range 10 < Q(2) < 350 GeV(2) and for invariant masses of the hadronic system W(X) > 5 GeV. Differential cross sections are presented for inclusive isolated photon production as functions of Q(2), x, E(T)(gamma) and eta(gamma). Leading-logarithm parton-shower Monte Carlo simulations and perturbative QCD predictions give a reasonable description of the data over most of the kinematic range. (C) 2010 Elsevier B.V. All rights reserved.
2010
dis; isolated photon; photon emission; quark radiation
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of isolated photon production in deep inelastic ep scattering ZEUS Collaboration / S., C., M., D., S., M., B., M., D., N., J., R., R., Y., Mck, M., P., A., G., B., L., B., D., B., A., B., G., B., F., C., M., C., G., I., A., M., R., N., A., P., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 687:(2010), pp. 16-25. [10.1016/j.physletb.2010.02.045]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/361340
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