WA92 - A FIXED TARGET EXPERIMENT TO TRIGGER ON AND IDENTIFY BEAUTY PARTICLE DECAYS

Authors
ADAMOVICH M ADINOLFI M ALEXANDROV Y ANGELINI C ANTINORI F BACCI C BARBER G BARBERIS D BARNEY D BATTEN J BEUSCH W BRUSCHINI C CARDARELLI R CARDINI A CASANOVA V CERADINI F CIAPETTI G DAMERI N DARBO G DICIACCIO A DUANE A DUFEY JP FARTHOUAT P FLAMINIO V FORINO A FRENCH BR FRENKEL A GEMME C GESSAROLI R HARRISON K HUMMADI N HURST R KIRK A LACAVA F LASSALLE JC LAZZERONI C MALFERRARI L MALJUKOV S MARTELLOTTI G MARTINENGO P MAZZANTI P MCEWEN JG MINASHVILI I MUSICO P NECHAEVA P NISATI A ORESTANO D OSCULATI B PASSASEO M PENSO G PETROLO E PONTECORVO L QUARENI A ROTSCHEIDT H RYZHOV V RODA C ROSSI L RUSSAKOVICH N SALVO C SANTONICO R SCHULER G SEMENOV A SOLOVJEV A TORELLI M VENEZIANO S VERNOCCHI F VERZOCCHI M WEBSDALE D WEYMANN M ZANELLO L ZAVERTYAEV M
Citation
M. Adamovich et al., WA92 - A FIXED TARGET EXPERIMENT TO TRIGGER ON AND IDENTIFY BEAUTY PARTICLE DECAYS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 379(2), 1996, pp. 252-270
Citations number
35
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
379
Issue
2
Year of publication
1996
Pages
252 - 270
Database
ISI
SICI code
0168-9002(1996)379:2<252:W-AFTE>2.0.ZU;2-U
Abstract
We describe the detectors and trigger system used in the CERN WA92 exp eriment. The experiment was designed to study the production and decay of beauty particles from 350 GeV/c pi(-) interactions in copper and t ungsten targets. Charged particle tracking is performed using the omeg a spectrometer. Silicon microstrip detectors are used to provide preci se tracking information in the region of the production and the decay of heavy-flavoured particles and to trigger on the resulting high impa ct parameter tracks. The precision of vertex reconstruction correspond s to +/-3.7% of the mean B-decay proper lifetime. Lepton and high tran sverse momentum hadron signals are also used in the trigger, which acc epts 23% of B-decays and rejects 98.4% of non-beauty interactions.