Transverse target single-spin asymmetry in inclusive electroproduction of charged pions and kaons by HERMES

  title={Transverse target single-spin asymmetry in inclusive electroproduction of charged pions and kaons by HERMES},
  author={Z. Akopov and E. C. Aschenauer and Eduard Avetisyan and St. Belostotski and Nicola Bianchi and J. Bowles and Jatu Burns and Marta Capiluppi and Gionata Capitani and Evarostp Cisbani and Giuseppe Ciullo and Paola F. Dalpiaz and W. Deconinck and Roberto De Leo and L. De Nardom and Pasquale Di Nezza and Ricardo Fabbri and Alessandra Fantoni and L. Felawka and Francesca Giordano and Cynthia Marie Hadjidakis and Delia Hasch and Adrian Hillenbrand and A. L{\'o}pez Ruizm and Andreas Mussgiller and E. Nappi and Paul Edwin Reimer and Anna Rita Reolon and Christian Riedl and Gunther Rosner and D. Ryckboschm and Gunar Schnell and J. J. M. Steijger and Charlotte Van Hulse},
Single-spin asymmetries were investigated in inclusive electroproduction of charged pions and kaons from transversely polarized protons at the Hermes experiment. The asymmetries were studied as a function of the azimuthal angle ψ about the beam direction between the target-spin direction and the hadron production plane, the transverse hadron momentum PT relative to the direction of the incident beam, and the Feynman variable xF . The sinψ amplitudes are positive for π and K, slightly negative… CONTINUE READING

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