SU\G(𝔸)/K·U

Beam-helicity asymmetry in associated electroproduction of real photons ep → eγπN in the Δ-resonance region

A. Airapetian, Н. Акопов, E. C. Aschenauer, W. Augustyniak, R. Avakian, A. Avetissian, E. Avetisyan, H.P. Blok, H. Böttcher, A. Borissov

Type: Article

Publication Date: 2014-01-01

Citations: 8

DOI: https://doi.org/10.1007/jhep01(2014)077

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 → eγπ0 p and ep → eγπ+ n, from a data set collected with a recoil detector. All asymmetry amplitudes are found to be consistent with zero.

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  • Journal of High Energy Physics - View - PDF
  • arXiv (Cornell University) - View - PDF
  • Enlighten: Publications (The University of Glasgow) - View - PDF
  • Ghent University Academic Bibliography (Ghent University) - View - PDF
  • Desy Publications Database (Deutsches Elektronen-Synchrotron DESY) - View - PDF
  • DataCite API - View

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