Determination of the gluon polarisation in the COMPASS experiment at CERN

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 /sup 6/LiD target. Photon-gluon fusion events are selecte...

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Detalles Bibliográficos
Autor principal: Mielech, Adam
Lenguaje:eng
Publicado: 2005
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysa.2005.02.150
http://cds.cern.ch/record/915958
Descripción
Sumario: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 /sup 6/LiD target. Photon-gluon fusion events are selected using charmed mesons and hadron pairs at large p/sub T/. Preliminary results on charm signal extraction, and spin asymmetry A/sup gamma */d of the cross sections for high p/sub T / hadron pairs production are presented.

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