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New results on $\Delta G/G$ from COMPASS
The gluon polarisation, $\Delta g/g$, is determined from photon-gluon fusion (PGF) events produced in scattering of 160 GeV polarised muons off polarised deuterons. Two independent methods based on LO QCD are used to extract PGF events: selection of $D$ or $D^{*}$ mesons or a pair of high $p_{t}$ ha...
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| Lenguaje: | eng |
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2009
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| Acceso en línea: | https://dx.doi.org/10.1016/j.nuclphysa.2009.05.040 http://cds.cern.ch/record/1497195 |