• Media type: E-Article
  • Title: Azimuthal distributions of charged hadrons, pions, and kaons produced in deep-inelastic scattering off unpolarized protons and deuterons
  • Contributor: Airapetian, A. [Author]; Akopov, N. [Author]; Borissov, A. [Author]; Schüler, K. P. [Author]; Seitz, B. [Author]; Shibata, T. -A. [Author]; Stancari, M. [Author]; Statera, M. [Author]; Steijger, J. J. M. [Author]; Stewart, J. [Author]; Stinzing, F. [Author]; Terkulov, A. [Author]; Truty, R. M. [Author]; Bowles, J. [Author]; Trzcinski, A. [Author]; Tytgat, M. [Author]; Vandenbroucke, A. [Author]; Van Haarlem, Y. [Author]; Van Hulse, C. [Author]; Veretennikov, D. [Author]; Vikhrov, V. [Author]; Vilardi, I. [Author]; Wang, S. [Author]; Yaschenko, S. [Author]; [...]
  • imprint: Soc., 2013
  • Published in: Physical review / D 87(1), 012010 (2013). doi:10.1103/PhysRevD.87.012010
  • Language: English
  • DOI: https://doi.org/10.1103/PhysRevD.87.012010
  • ISSN: 1550-2368; 0556-2821; 1089-4918; 1550-7998
  • Keywords: charged particle: angular distribution ; K: electroproduction ; Collins ; parton: transverse momentum ; experimental results ; lepton deuteron: deep inelastic scattering ; DESY HERA Stor ; 27.6 GeV ; pi: electroproduction ; electron p: deep inelastic scattering ; generalized parton distribution ; charged particle: multiple production ; modulation ; angular dependence ; quark: polarization ; positron p: deep inelastic scattering ; deep inelastic scattering: semi-inclusive reaction ; HERMES
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  • Description: The azimuthal cos{\phi} and cos2{\phi} modulations of the distribution of hadrons produced in unpolarized semi-inclusive deep-inelastic scattering of electrons and positrons off hydrogen and deuterium targets have been measured in the HERMES experiment. For the first time these modulations were determined in a four-dimensional kinematic space for positively and negatively charged pions and kaons separately, as well as for unidentified hadrons. These azimuthal dependences are sensitive to the transverse motion and polarization of the quarks within the nucleon via, e.g., the Cahn, Boer-Mulders and Collins effects.
  • Access State: Open Access