Abstract
The beam-helicity asymmetry in associated electroproduction of real photons, ep → eγπN, in the Δ(1232)-resonance region is measured using the longitudinally polarized Hera positron beam and an unpolarized hydrogen target. Azimuthal Fourier amplitudes of this asymmetry are extracted separately for two channels, ep → eγπ
Original language | English |
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Journal | Journal of High Energy Physics |
Issue number | 1 |
DOIs | |
Publication status | Published - 2014 |