6 papers
Leading order determination of the gluon polarisation from DIS events with high-p_T hadron pairs
C. Adolph, M. G. Alekseev, V. Yu. Alexakhin +212
We present a determination of the gluon polarisation Delta g/g in the nucleon, based on the longitudinal double-spin asymmetry of DIS events with a pair of large transverse-momentu…
First Measurement of Chiral Dynamics in π^- γ-> π^- π^- π^+
M. G. Alekseev, V. Yu. Alexakhin, Yu. Alexandrov +202
The COMPASS collaboration at CERN has investigated the π^- γ-> π^- π^- π^+ reaction at center-of-momentum energy below five pion masses, sqrt(s) < 5 m(π), embedded in the Primakoff…
Quark helicity distributions from longitudinal spin asymmetries in muon-proton and muon-deuteron scattering
COMPASS Collaboration
Double-spin asymmetries for production of charged pions and kaons in semi-inclusive deep-inelastic muon scattering have been measured by the COMPASS experiment at CERN. The data, o…
Azimuthal asymmetries of charged hadrons produced by high-energy muons scattered off longitudinally polarised deuterons
COMPASS Collaboration
Azimuthal asymmetries in semi-inclusive production of positive (h^+) and negative hadrons (h^-) have been measured by scattering 160 GeV muons off longitudinally polarised deuteron…
Measurement of the Collins and Sivers asymmetries on transversely polarised protons
The COMPASS Collaboration, M. G. Alekseev
The Collins and Sivers asymmetries for charged hadrons produced in deeply inelastic scattering on transversely polarised protons have been extracted from the data collected in 2007…
The Spin-dependent Structure Function of the Proton g_1^p and a Test of the Bjorken Sum Rule
The COMPASS Collaboration, M. G. Alekseev
The inclusive double-spin asymmetry, A_1^p, has been measured at COMPASS in deepinelastic polarised muon scattering off a large polarised NH3 target. The data, collected in the yea…