Leading-order determination of the gluon polarisation from semi-inclusive deep inelastic scattering data
Leading-order determination of the gluon polarisation from semi-inclusive deep inelastic scattering data
Using a novel analysis technique, the gluon polarisation in the nucleon is re-evaluated using the longitudinal double-spin asymmetry measured in the cross section of semi-inclusive single-hadron muoproduction with photon virtuality $$Q^2>1~(\mathrm{GeV}/c)^2$$ . The data were obtained by the COMPASS experiment at CERN using a 160 GeV/c polarised muon beam impinging …