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Beam-Spin Asymmetries in the Azimuthal Distribution of Pion Electroproduction
HERMES Collaboration, A. Airapetian
A measurement of the beam-spin asymmetry in the azimuthal distribution of pions produced in semi-inclusive deep-inelastic scattering off protons is presented. The measurement was p…
Precise determination of the spin structure function of the proton, deuteron and neutron
The HERMES Collaboration, A. Airapetian
Precise measurements of the spin structure functions of the proton and deuteron are presented over the kinematic range and $0…
Measurement of Angular Distributions of Drell-Yan Dimuons in p + d Interaction at 800 GeV/c
L. Y. Zhu, J. C. Peng, P. E. Reimer +3
We report a measurement of the angular distributions of Drell-Yan dimuons produced using an 800 GeV/c proton beam on a deuterium target. The muon angular distributions in polar ang…
The Beam--Charge Azimuthal Asymmetry and Deeply Virtual Compton Scattering
The HERMES Collaboration, A. Airapetian
The first observation of an azimuthal cross--section asymmetry with respect to the charge of the incoming lepton beam is reported from a study of hard exclusive electroproduction o…