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arxiv: hep-ex/9902008 · v1 · submitted 1999-02-06 · ✦ hep-ex

An electromagnetic shashlik calorimeter with longitudinal segmentation

CALEIDO collaboration: A. C. Benvenuti (1) , I. Britvich (6) , T. Camporesi (2) , P. Checchia (4) , A. Feniouk (6) , V. Hedberg (3) , V. Lishin (6) , M. Margoni (5)
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M. Mazzucato (5) V. Obraztsov (6) M. Paganoni (4) V. Poliakov (6) F. Simonetto (5) F. Terranova (4) E. Vlasov (6) ((1) Universita` di Bologna INFN Bologna Italy (2) CERN Geneva Switzerland (3) University of Lund Lund Sweden (4) Universita` di Milano Milan (5) Universita` di Padova Padua (6) Institute for High Energy Physics Serpukov Russia)
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classification ✦ hep-ex
keywords beencalorimeterlongitudinalsegmentationshashlikareabeambuilt
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A novel technique for longitudinal segmentation of shashlik calorimeters has been tested in the CERN West Area beam facility. A 25 tower very fine samplings e.m. calorimeter has been built with vacuum photodiodes inserted in the first 8 radiation lengths to sample the initial development of the shower. Results concerning energy resolution, impact point reconstruction and electron/pion separation are reported.

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