THE HIGH-INTENSITY HYPERON BEAM AT CERN

Authors
ALEXANDROV YA CLEMENT M DROPMANN F FOURNIER A GRAFSTROM P HUBBARD E PAUL S SCHMITT L SIEBERT HW TROMBINI A ZAVERTIAEV M
Citation
Ya. Alexandrov et al., THE HIGH-INTENSITY HYPERON BEAM AT CERN, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 408(2-3), 1998, pp. 359-372
Citations number
12
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
408
Issue
2-3
Year of publication
1998
Pages
359 - 372
Database
ISI
SICI code
0168-9002(1998)408:2-3<359:THHBAC>2.0.ZU;2-K
Abstract
A high-intensity hyperon beam was constructed at CERN to deliver Sigma (-) to experiment WA89 at the Omega facility and operated from 1989 to 1994. The setup allowed rapid changeover between hyperon and conventi onal hadron beam configurations. The beam provided a Sigma(-) flux of 1.4 x 10(5) per burst at mean momenta between 330 and 345 GeV/c produc ed by about 3 x 10(10) protons of 450 GeV/c, At the experiment target the beam had a Sigma(-)/pi(-) ratio close to 0.4 and a size of 1.6 x 3 ,7cm(2). The beam particle trajectories and their momenta were measure d with a scintillating fibre hodoscope in the beam channel and a silic on microstrip detector at the exit of the channel. A fast transition r adiation detector was used to identify the pion component of the beam. (C) 1998 Elsevier Science B.V. All rights reserved.