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Ratios of Helicity Amplitudes for Exclusive rho-0 Electroproduction
The HERMES Collaboration, A. Airapetian, N. Akopov +135
Exclusive rho^0-meson electroproduction is studied in the HERMES experiment, using a 27.6 GeV longitudinally polarized electron/positron beam and unpolarized hydrogen and deuterium…
Exclusive rho-0 electroproduction on transversely polarized protons
The HERMES Collaboration, A. Airapetian
The exclusive electroproduction of rho-0 mesons was studied with the HERMES spectrometer at the DESY laboratory by scattering 27.6 GeV positron and electron beams off a transversel…
Measurement of Parton Distributions of Strange Quarks in the Nucleon from Charged-Kaon Production in Deep-Inelastic Scattering on the Deuteron
HERMES Collaboration, A. Airapetian
The momentum and helicity density distributions of the strange quark sea in the nucleon are obtained in leading order from charged-kaon production in deep-inelastic scattering on t…
Measurement of Azimuthal Asymmetries With Respect To Both Beam Charge and Transverse Target Polarization in Exclusive Electroproduction of Real Photons
HERMES Collaboration, A. Airapetian
Azimuthal asymmetries in exclusive electroproduction of real photons are measured for the first time with respect to transverse target polarisation, providing new constraints on Ge…
Longitudinal Spin Transfer to the Hyperon in Semi-Inclusive Deep-Inelastic Scattering
Hermes Collaboration, A. Airapetian
The transfer of polarization from a high-energy positron to a \lam hyperon produced in semi-inclusive deep-inelastic scattering has been measured. The data have been obtained by th…