The semi-inclusive difference asymmetry A(h+-h-) for hadrons of opposite charge has been measured by the COMPASS experiment at CERN. The data were collected in the years 2002-2004 using a 160 GeV polarised muon beam scattered off a large polarised (LiD)-Li-6 target in the kinematic range 0.006 < x < 0.7 and 1 < Q(2) < 100 (GeV/C)(2). In leading order QCD (LO) the deuteron asymmetry A(h+-h-) measures the valence quark polarisation and provides an evaluation of the first moment of Delta u(v) + Delta d(v) which is found to be equal to 0.40 +/- 0.07(stat.) +/- 0.06(syst.) over the measured range of x at Q(2) = 10 (GeV/C)(2). When combined with the first moment of g(1)(d) previously measured on the same data, this result favours a non-symmetric ...
The results of quarks helicity distributions are presented which were determined by COMPASS experime...
The results of quarks helicity distributions are presented which were determined by COMPASS experime...
The strange quark helicity distribution $\Delta s(x)$ was derived at LO from the inclusive asymmetry...
The semi-inclusive difference asymmetry A(h+-h-) for hadrons of opposite charge has been measured by...
The semi-inclusive difference asymmetry A^{h^{+}-h^{-}} for hadrons of opposite charge has been meas...
Alekseev M, Alexakhin VY, Alexandrov Y, et al. The Polarised Valence Quark Distribution from semi-in...
AbstractThe semi-inclusive difference asymmetry Ah+−h− for hadrons of opposite charge has been measu...
A first evaluation of the polarized valence quark distribution $\Delta u_v(x)+\Delta d_v(x)$ from th...
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged ha...
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged ha...
Adeva B, Akdogan T, Arik E, et al. Polarised quark distributions in the nucleon from semi-inclusive ...
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged ha...
Adeva B, Arik E, Arvidson A, et al. Polarisation of valence and non-strange sea quarks in the nucleo...
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged ha...
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged ha...
The results of quarks helicity distributions are presented which were determined by COMPASS experime...
The results of quarks helicity distributions are presented which were determined by COMPASS experime...
The strange quark helicity distribution $\Delta s(x)$ was derived at LO from the inclusive asymmetry...
The semi-inclusive difference asymmetry A(h+-h-) for hadrons of opposite charge has been measured by...
The semi-inclusive difference asymmetry A^{h^{+}-h^{-}} for hadrons of opposite charge has been meas...
Alekseev M, Alexakhin VY, Alexandrov Y, et al. The Polarised Valence Quark Distribution from semi-in...
AbstractThe semi-inclusive difference asymmetry Ah+−h− for hadrons of opposite charge has been measu...
A first evaluation of the polarized valence quark distribution $\Delta u_v(x)+\Delta d_v(x)$ from th...
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged ha...
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged ha...
Adeva B, Akdogan T, Arik E, et al. Polarised quark distributions in the nucleon from semi-inclusive ...
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged ha...
Adeva B, Arik E, Arvidson A, et al. Polarisation of valence and non-strange sea quarks in the nucleo...
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged ha...
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged ha...
The results of quarks helicity distributions are presented which were determined by COMPASS experime...
The results of quarks helicity distributions are presented which were determined by COMPASS experime...
The strange quark helicity distribution $\Delta s(x)$ was derived at LO from the inclusive asymmetry...