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arxiv hep-ex/0008042 v1 pith:7JCX2Q5M submitted 2000-08-22 hep-ex

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

classification hep-ex
keywords heracalorimeterhighbeamdetectorelectronenergyacceptance
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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