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New measurement of DeltaG/G at COMPASS

S. Procureur
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Abstract

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.

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S. Procureur. 2006-05-14. New measurement of DeltaG/G at COMPASS. https://arxiv.org/abs/hep-ex/0605043

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