The COMPASS experiment at CERN

  title={The COMPASS experiment at CERN},
  author={C. Collaboration and P. Abbon and E. al.},
  journal={Nuclear Instruments \& Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment},
  • C. Collaboration, P. Abbon, E. al.
  • Published 2007
  • Physics
  • Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
The COMPASS Collaboration brings together about 220 physicists from 27 institutes from Europe, Russia, Japan and India. The goal is to study the structure and spectroscopy of hadrons by a series of experiments with muon and hadron beams in the energy range of 100–200 GeV. The experiment [1] is located at the M2 beam line at the CERN SPS. In 1995 the project started out with two letters of intent which were merged into a common proposal and which was fully approved in September 1998. The first… Expand
Collins and Sivers asymmetries on the deuteron from COMPASS
COMPASS, a fixed target experiment on the SPS M2 beamline at CERN, has started to collect physics data from Autumn 2002 on a polarized 6LiD target. This target can be both longitudinally andExpand
Cryogenic silicon detectors for the COMPASS experiment at CERN
In 2002 the COMPASS experiment at CERN has started to take physics data. The fixed target experiment at the SPS uses muon and hadron beams of very high intensity to investigate the structure of theExpand
Large COMPASS polarized solid state target for Drell-Yan physics
In the COMPASS Drell-Yan programme a negative pion beam with momentum of 190 GeV/c and intensity up to 108 particles/s is used. The polarizable solid state NH3 target is placed inside the mixingExpand
The Spin Structure of the Nucleon; A COMPASS Perspective
The COMPASS experiment at CERN is carrying on an experimental investigation of the spin structure of the nucleon, covering both longitudinal and transverse spin phenomena. In the first case, theExpand
Overview of the COMPASS results on the nucleon spin
Abstract The COMPASS experiment [COMPASS, P. Abbon et al., The COMPASS experiment at CERN, Nucl. Inst. Meth. A577, 455 (2007)] at CERN is one of the leading experiments studying the nucleon spin.Expand
Experimental Program of the Future COMPASS-II Experiment at CERN
Over the last decade the COMPASS experiment has successfully obtained precise results on nucleon structure and hadron spectroscopy, with statistical errors much lower than previously reported.Expand
The COMPASS-II Experiment
The COMPASS-II experiment is a fixed target experiment, located at the CERN Prevessin area at the end of the M2-beamline of the Super Proton Synchrotron. The scattering of high energy leptons orExpand
A Digital Trigger for the Electromagnetic Calorimeter at the COMPASS Experiment
At the COMPASS experiment at CERN's SPS many physics channels containing neutral particles are studied. These particles are identified by two electromagnetic calorimeters covering different regionsExpand
The COMPASS experiment at CERN
COMPASS ( COmmonMuon andProton Apparatus forStructure andSpectroscopy) is a fixed target experiment at CERN dedicated to studies of the spin st ructure of the nucleon and of the spectroscopy ofExpand
Design and performance of the COMPASS online event filter
With the start-up of the LHC still at the horizon, COMPASS is the experiment most actively taking data at CERN. The high trigger rate creates a demanding environment for the implementation of anExpand


The COMPASS polarized target
The spin structure of the nucleons is investigated by studying spin dependent process of deep inelastic scattering of a polarized muon beam and a polarized nucleon target in the COMPASS experimentExpand
Polarization build up in COMPASS 6LiD target
The CERN COMPASS experiment uses a large double 424 cm3 cell polarized 6LiD target for the muon program. High nuclear spin polarization |P| > 50 % is obtained, typically in five days. The highExpand
Design and construction of the triple GEM detector for TOTEM
We describe the design and construction of the first triple-GEM chamber prototypes for the TOTEM detector at CERN LHC. The chambers are semicircular, with an inner and outer radius of the active areaExpand
A New Method for the High-Precision Alignment of Track Detectors
Track detectors in high energy physics experiments require an accurate determination of a large number of alignment parameters. A general method has been developed, which allows the determination ofExpand
"The MAD", a Full Custom ASIC for the CMS Barrel Muon Chambers Front End Electronics
To meet frontend electronics needs of CMS barrel muon chambers a full custom ASIC, named "The MAD", has been first developed by INFN of Padova and then produced in 80.000 pieces to equip the 180.000Expand
The Embedded Local Monitor Board (ELMB) in the LHC Front-end I/O Control System
The Embedded Local Monitor Board is a plug-on board to be used in LHC detectors for a range of different front-end control and monitoring tasks. It is based on the CAN serial bus system and isExpand
Matter and Methods at Low Temperatures
This textbook contains a wealth of information essential for successful experiments at low temperatures. The first chapters describe the low-temperature properties of liquid and solid matter,Expand
CASTOR status and evolution
In 2003, CERN plans to continue working on Grid interfaces to CASTOR and to improve performance not only for Central Data Recording but also for Data Analysis applications where thousands of processes possibly access the same hot data. Expand
The LHC Experiments' Joint Controls Project (JCOP)
A pad gripping device for a hand-held appliance, such as an electric dry shaver, comprising an envelope containing a cushion member and frame member wherein fastening means extend from the frameExpand
  • Instr. and Meth. A 386
  • 1997