Precision Measurement of Energy and Position Resolutions of the BTeV Electromagnetic Calorimeter Prototype

V. Batarin , T. Brennan , J. Butler , H. Cheung , A. Derevschikov , Y. Fomin , V. Frolov , Y. Goncharenko

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V. Grishin V. Kachanov V. Khodyrev K. Khroustalev A. Konstantinov V. Kravtsov Y. Kubota V. Leontiev V. Maisheev Y. Matulenko Y. Melnick A. Meschanin N. Mikhalin N. Minaev V. Mochalov D. Morozov R. Mountain L. Nogach A. Ryazantsev P. Semenov K. Shestermanov L. Soloviev V. Solovianov S. Stone M. Ukhanov A. Uzunian A. Vasiliev A. Yakutin J. Yarba

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classification ✦ hep-ex physics.ins-det

keywords energyelectromagneticpositionresolutionscalorimetercrystalsdependencepresented

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The energy dependence of the energy and position resolutions of the electromagnetic calorimeter prototype made of lead tungstate crystals produced in Bogoroditsk (Russia) and Shanghai (China) is presented. These measurementswere carried out at the Protvino accelerator using a 1 to 45 GeV electron beam. The crystals were coupled to photomultiplier tubes. The dependence of energy and position resolutions on different factors as well as the measured electromagnetic shower lateral profile are presented.

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Precision Measurement of Energy and Position Resolutions of the BTeV Electromagnetic Calorimeter Prototype

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