Experimental study of hard photon radiation processes at HERA |
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Authors: | T Ahmed S Aid V Andreev B Andrieu R -D Appuhn M Arpagaus A Babaev J Baehr " target="_blank">J Bán and P Baranov |
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Institution: | T. Ahmed, S. Aid, V. Andreev, B. Andrieu, R. -D. Appuhn, M. Arpagaus, A. Babaev, J. Baehr, J. Bán and P. Baranov, et al. |
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Abstract: | We present an experimental study of theep e +p andep e +X processes using data recorded by the H1 detector in 1993 at the electron-proton collider HERA. These processes are employed to measure the luminosity with an accuracy of 4.5 %. A subsample of theep e +X events in which the hard photon is detected at angles
0.45 mrad with respect to the incident electron direction is used to verify experimentally the size of radiative corrections to theep eX inclusive cross section and to investigate the structure of the proton in theQ
2 domain down to 2 GeV2, lower than previously attained at HERA.Supported by the Bundesministerium für Forschung und Technologie, FRG under contract numbers 6AC17P, 6AC47P, 6DO57I, 6HH17P, 6HH27I, 6HD17I, 6HD27I, 6KI17P, 6MP17I, and 6WT87P |
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