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The COMPASS experiment at CERN

โœ Scribed by Dietrich von Harrach


Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
584 KB
Volume
629
Category
Article
ISSN
0375-9474

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โœฆ Synopsis


The recently approved COMPASS experiment attempts a measurement of the gluon polarization around r/__ 0.1 with a precision of 5(Ag/g) ,,o 0.1. The experiment uses open charm muo-production and large PT ha&on pairs to tag the photon-gluon fusion process. COMPASS will also cover a rich spin-physics program in polarized DIS.


๐Ÿ“œ SIMILAR VOLUMES


The COMPASS experiment at CERN
โœ F. Bradamante ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 759 KB

An important goal of the COMPASS experiment is the study of semi-inclusive polarised muon scattering from a polarised target. The identification of the hadrons will allow, for the first time, a direct measurement of the gluon polarisation AG/G from the cross-section asymmetry of open charm productio

The micromegas detector as a high flux a
โœ D. Thers; Ph. Abbon; J. Ball; R. Durand; J.C. Faivre; A. Giganon; J.M. Le Goff; ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 208 KB

We propose to use MICROMEGAS, a new gaseous detector, in the tracking system of the COMPASS experiment. COMPASS will make use of the high energy (200 GeV) and high intensity (10% -1) muon beam at CERN. MICROMEGAS chambers are good candidates for the tracking of leptons and hadrons in areas of ~ 0.2

Determination of the gluon polarisation
โœ Adam Mielech ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 146 KB

Determining of the gluon polarisation in the nucleon, by measurement of the double spin asymmetry of the photon-gluon fusion process is the main goal of the COMPASS experiment at CERN. Experiment uses 160 GeV polarized muon beam and polarised 6 LiD target. Photon-gluon fusion events are selected usi

The COMPASS spectrometer at CERN
โœ G.K. Mallot ๐Ÿ“‚ Article ๐Ÿ“… 2004 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 259 KB

The COMPASS spectrometer was designed for the NA58 fixed-target experiment at the CERN SPS. The physics aim is the study of the spin structure of the nucleon and the spectroscopy of hadrons with muon and hadron beams. Several novel techniques like Micromegas, GEMs and straw tracking detectors were d

Exclusive production using COMPASS at CE
โœ E. Burtin ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 208 KB

COMPASS has measured the incoherent exclusive electroproduction of ฯ 0 over a wide Q 2 range and at < W >= 10 GeV. Spin density matrix elements were extracted from the angular distribution. Preliminary results of the analysis of the data taken in 2002 presented here are consistent with a substantial