Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 779, Issue -, Pages 69-115Publisher
ELSEVIER
DOI: 10.1016/j.nima.2015.01.035
Keywords
Fixed target experiment for hadron spectroscopy; Micro Pattern detectors and Drift chambers; RICH; Calorimetry; Front-end electronics; Data acquisition and reconstruction; Monte-Carlo simulation
Categories
Funding
- MEYS (Czech Republic) [ME492, LA242]
- CEA (France)
- Bundesministerium fur Bildung und Forschung, DFG cluster of excellence
- Physics at Hadron Accelerators (Germany) [08-02-91009, 12-02-91500]
- Israel Science Foundation
- MIUR (Italy)
- MEXT
- JSPS [18002006, 20540299, 18540281]
- Daiko Foundation
- Yamada Foundation (Japan)
- SAIL (CSR) (Government of India)
- NCN (Poland) [DEC-2011/01/M/ST2/02350]
- Fundacao para a Ciencia e Tecnologia, COMPETE and QREN (Portugal) [CERN/FP/109323/2009, CERN/FP/116376/2010, CERN/FP/123600/2011]
- European Union [283286]
- Fundação para a Ciência e a Tecnologia [CERN/FP/123600/2011, CERN/FP/116376/2010, CERN/FP/109323/2009] Funding Source: FCT
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The main characteristics of the COMPASS experimental setup for physics with hadron beams are described. This setup was designed to perform exclusive measurements of processes with several charged and/or neutral particles in the final state. Making use of a large part of the apparatus that was previously built for spin structure studies with a muon beam, it also features a new target system as well as new or upgraded detectors. The hadron setup is able to operate at the high incident hadron flux available at CERN. It is characterised by large angular and momentum coverages, large and nearly flat acceptances, and good two and three-particle mass resolutions. In 2008 and 2009 it was successfully used with positive and negative hadron beams and with liquid hydrogen and solid nuclear targets. This paper describes the new and upgraded detectors and auxiliary equipment, outlines the reconstruction procedures used, and summarises the general performance of the setup. (C) 2015 Elsevier B.V. All rights reserved,
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