A New High Energy Photon Tagger for the H1 - Detector at HERA

V. F. Andreev; A. S. Belousov; A. M. Fomenko; L. A. Gorbov; T. Greenshaw; S. V. Levonian; E. I. Malinovski; S. J. Maxfield; I. P. Sheviakov; P. A. Smirnov; Yu. V. Soloviev; G. -G. Winter

arXiv · hep-ex/0008042

A New High Energy Photon Tagger for the H1 - Detector at HERA

V. F. Andreev·A. S. Belousov·A. M. Fomenko·L. A. Gorbov·T. Greenshaw·S. V. Levonian·E. I. Malinovski·S. J. Maxfield·I. P. Sheviakov·P. A. Smirnov·Yu. V. Soloviev·G. -G. Winter

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Abstract

The H1 detector at HERA has been upgraded by the addition of a new electromagnetic calorimeter. This is installed in the HERA tunnel close to the electron beam line at a position 8m from the interaction point in the electron beam direction. The new calorimeter extends the acceptance for tagged photoproduction events to the high y range, 0.85 < y < 0.95, and thus significantly improves the capability of H1 to study high energy gamma-p processes. The calorimeter design, performance and first results obtained during the 1996-1999 HERA running are described.

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V. F. Andreev, A. S. Belousov, A. M. Fomenko, L. A. Gorbov, T. Greenshaw, S. V. Levonian, E. I. Malinovski, S. J. Maxfield, I. P. Sheviakov, P. A. Smirnov, Yu. V. Soloviev, G. -G. Winter. 2000-08-22. A New High Energy Photon Tagger for the H1 - Detector at HERA. https://arxiv.org/abs/hep-ex/0008042

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