New measurement of DeltaG/G at COMPASS

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One of the main goals of the COMPASS experiment at CERN is the determination of the gluon polarisation in the nucleon, DeltaG/G. It is extracted from the spin asymmetry in the scattering of a polarized 160 GeV muon beam on a polarized LiD target, by selecting photon-gluon fusion events. These events are tagged by the production of open charm or high pT hadron pairs. We present the results obtained for DeltaG/G(x) in both channels. For the first time, preliminary results of 2004 data in the high pT channel are also shown.
4 pages, 5 figures, Moriond-QCD 2006 conference proceedings

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High Energy Physics - Experiment

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http://salesiana.dossiersoluciones.com/handle/123456789/111208

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ex/0605043
 http://arxiv.org/abs/hep-ex/0605043

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arXiv