Measurement of isolated photon production in deep-inelastic scattering at HERA
Apstrakt
The production of isolated photons in deep-inelastic scattering ep - GT e gamma X is measured with the H1 detector at HERA. The measurement is performed in the kinematic range of negative four-momentum transfer squared 4 LT Q(2) LT 150 GeV2 and a mass of the hadronic system W-X GT 50 GeV. The analysis is based on a total integrated luminosity of 227 pb(-1). The production cross section of isolated photons with a transverse energy in the range 3 LT E-T(gamma) LT 10 GeV and pseudorapidity range -1.2 LT eta(gamma) LT 1.8 is measured as a function of E-T(gamma), eta(gamma) and Q(2). Isolated photon cross sections are also measured for events with no jets or at least one hadronic jet. The measurements are compared with predictions from Monte Carlo generators modelling the photon radiation from the quark and the electron lines, as well as with calculations at leading and next to leading order in the strong coupling. The predictions significantly underestimate the measured cross sections.
Izvor:
European Physical Journal C. Particles and Fields, 2008, 54, 3, 371-387
DOI: 10.1140/epjc/s10052-008-0541-6
ISSN: 1434-6044
WoS: 000254206800003
Scopus: 2-s2.0-41249088200
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Aaron, F. D. AU - Božović-Jelisavčić, Ivanka AU - Pandurović, Mila AU - Smiljanić, Ivan PY - 2008 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3386 AB - The production of isolated photons in deep-inelastic scattering ep - GT e gamma X is measured with the H1 detector at HERA. The measurement is performed in the kinematic range of negative four-momentum transfer squared 4 LT Q(2) LT 150 GeV2 and a mass of the hadronic system W-X GT 50 GeV. The analysis is based on a total integrated luminosity of 227 pb(-1). The production cross section of isolated photons with a transverse energy in the range 3 LT E-T(gamma) LT 10 GeV and pseudorapidity range -1.2 LT eta(gamma) LT 1.8 is measured as a function of E-T(gamma), eta(gamma) and Q(2). Isolated photon cross sections are also measured for events with no jets or at least one hadronic jet. The measurements are compared with predictions from Monte Carlo generators modelling the photon radiation from the quark and the electron lines, as well as with calculations at leading and next to leading order in the strong coupling. The predictions significantly underestimate the measured cross sections. T2 - European Physical Journal C. Particles and Fields T1 - Measurement of isolated photon production in deep-inelastic scattering at HERA VL - 54 IS - 3 SP - 371 EP - 387 DO - 10.1140/epjc/s10052-008-0541-6 ER -
@article{ author = "Aaron, F. D. and Božović-Jelisavčić, Ivanka and Pandurović, Mila and Smiljanić, Ivan", year = "2008", abstract = "The production of isolated photons in deep-inelastic scattering ep - GT e gamma X is measured with the H1 detector at HERA. The measurement is performed in the kinematic range of negative four-momentum transfer squared 4 LT Q(2) LT 150 GeV2 and a mass of the hadronic system W-X GT 50 GeV. The analysis is based on a total integrated luminosity of 227 pb(-1). The production cross section of isolated photons with a transverse energy in the range 3 LT E-T(gamma) LT 10 GeV and pseudorapidity range -1.2 LT eta(gamma) LT 1.8 is measured as a function of E-T(gamma), eta(gamma) and Q(2). Isolated photon cross sections are also measured for events with no jets or at least one hadronic jet. The measurements are compared with predictions from Monte Carlo generators modelling the photon radiation from the quark and the electron lines, as well as with calculations at leading and next to leading order in the strong coupling. The predictions significantly underestimate the measured cross sections.", journal = "European Physical Journal C. Particles and Fields", title = "Measurement of isolated photon production in deep-inelastic scattering at HERA", volume = "54", number = "3", pages = "371-387", doi = "10.1140/epjc/s10052-008-0541-6" }
Aaron, F. D., Božović-Jelisavčić, I., Pandurović, M.,& Smiljanić, I.. (2008). Measurement of isolated photon production in deep-inelastic scattering at HERA. in European Physical Journal C. Particles and Fields, 54(3), 371-387. https://doi.org/10.1140/epjc/s10052-008-0541-6
Aaron FD, Božović-Jelisavčić I, Pandurović M, Smiljanić I. Measurement of isolated photon production in deep-inelastic scattering at HERA. in European Physical Journal C. Particles and Fields. 2008;54(3):371-387. doi:10.1140/epjc/s10052-008-0541-6 .
Aaron, F. D., Božović-Jelisavčić, Ivanka, Pandurović, Mila, Smiljanić, Ivan, "Measurement of isolated photon production in deep-inelastic scattering at HERA" in European Physical Journal C. Particles and Fields, 54, no. 3 (2008):371-387, https://doi.org/10.1140/epjc/s10052-008-0541-6 . .