PERFORMANCE OF A LIQUID ARGON PRESHOWER DETECTOR INTEGRATED WITH AN ACCORDION CALORIMETER

Authors
AUBERT B BAZAN A BEAUGIRAUD B COLAS J LEFLOUR T MAIRE M VIALLE JP WINGERTERSEEZ I ZOLNIEROWSKI YP GORDON HA RADEKA V RAHM D STEPHANI D BULGAKOV N CHEVALLEY JL FABJAN CW FOURNIER D GILDEMEISTER O JENNI P NESSI M NESSITEDALDI F PEPE M RICHTER W SODERQVIST J VUILLEMIN V BAZE JM GOSSET L LAVOCAT P LOTTIN JP MANSOULIE B MEYER JP RENARDY JF TEIGER J ZACCONE H BATTISTONI G CAMIN DV CAVALLI D COSTA G CRAVERO A FERRARI A GIANOTTI F MANDELLI L MAZZANTI M PERINI L PESSINA G SCIAMANNA M AUGE E CHASE R CHOLLET JC DELATAILLE C FAYARD L HRISOHO A JEAN P LEMEUR G MERKEL B NOPPE JM PARROUR G PETROFF P REPELLIN JP SCHAFFER A SEGUIN N UNAL G FUGLESANG C LEFEBVRE M
Citation
B. Aubert et al., PERFORMANCE OF A LIQUID ARGON PRESHOWER DETECTOR INTEGRATED WITH AN ACCORDION CALORIMETER, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 330(3), 1993, pp. 405-415
Citations number
9
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
330
Issue
3
Year of publication
1993
Pages
405 - 415
Database
ISI
SICI code
0168-9002(1993)330:3<405:POALAP>2.0.ZU;2-0
Abstract
A prototype liquid argon preshower detector with a strip granularity o f 2.5 mm has been tested at the CERN SPS in front of a liquid argon Ac cordion calorimeter. For charged tracks a signal-to-noise ratio of 9.4 and a space resolution of 340 mum were measured; the rejection power against overlapping photons produced in the decay of 50 GeV pi0's is l arger than 3; the precision on the electromagnetic shower direction, d etermined together with the calorimeter, is better than 7 mrad above 4 0 GeV; the calorimeter performance behind the preshower (approximately 4X0) is fully preserved. These results make such a detector attractiv e for future operation at the CERN Large Hadron Collider.