Direct Measurement of the Gluon Polarisation in the Nucleon via Charmed Meson Production

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dc.creatorCOMPASS Collaboration
dc.creatorAlekseev, M.
dc.date2008-02-21
dc.date.accessioned2026-07-07T09:22:17Z
dc.date.available2026-07-07T09:22:17Z
dc.descriptionWe present the first measurement of the gluon polarisation in the nucleon based on the photon-gluon fusion process tagged by charmed meson production and decay to charged K and pi. The data were collected in polarised muon scattering off a polarised deuteron target by the COMPASS collaboration at CERN during 2002-2004. The result of this LO analysis is <Delta g/g>_x = -0.47 +- 0.44 (stat) +- 0.15 (syst) at <x> ~= 0.11 and a scale mu^2 ~ 13 (GeV/c)^2.
dc.description7 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0802.3023
dc.identifierhttp://arxiv.org/abs/0802.3023
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/155321
dc.subjectHigh Energy Physics - Experiment
dc.titleDirect Measurement of the Gluon Polarisation in the Nucleon via Charmed Meson Production
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