The lead-glass electromagnetic calorimeter for the SELEX experiment

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• 作者：Balatz ; M.Y. ; Cooper ; P.S. ; Davidenko ; G.V. ; Dolgolenko ; A.G. ; Dzyubenko ; G.B. ; Evdokimov ; A.V. ; et. al.
• 刊名：Nuclear Inst. and Methods in Physics Research, A
• 出版年：2005
• 出版时间：June 11, 2005
• 年：2005
• 卷：545
• 期：1-2
• 页码：114-138
• 全文大小：607 K

文摘

A large-acceptance, highly segmented electromagnetic lead-glass calorimeter for Experiment E781 (SELEX) at Fermi National Acceleration Laboratory was designed and built. This detector has been used to reconstruct photons and electrons with energies ranging from a few GeV up to 500 GeV in the collisions of the 600 GeV a3;^- hyperons, π mesons and protons with the target nucleons. The design, calibration and performance of the calorimeter are described. Energy resolution and position resolution are assessed using both calibration electron beams and π⁰ mesons reconstructed in 600 GeV hadron–hadron interactions. The performance of the calorimeter in selecting resonant states that involve photons is demonstrated.