Beam-helicity and beam-charge asymmetries associated with deeply virtual Compton scattering on the unpolarised proton

@article{Airapetian2012BeamhelicityAB,
  title={Beam-helicity and beam-charge asymmetries associated with deeply virtual Compton scattering on the unpolarised proton},
  author={A. Airapetian and N. Akopov and Z. Akopov and E. C. Aschenauer and W. Augustyniak and R. Avakian and A. Avetissian and E. Avetisyan and H. P. Blok and A. Borissov and J. Bowles and V. Bryzgalov and J. Burns and M. Capiluppi and G. P. Capitani and E. Cisbani and G. Ciullo and M. Contalbrigo and P. F. Dalpiaz and W. Deconinck and R. Leo and L. Nardo and E. Sanctis and M. Diefenthaler and P. Nezza and M. D{\"u}ren and M. Ehrenfried and G. Elbakian and F. Ellinghaus and R. Fabbri and A. Fantoni and L. Felawka and S. Frullani and D. Gabbert and G. Gapienko and V. Gapienko and F. Garibaldi and G. Gavrilov and F. Giordano and S. Gliske and M. Golembiovskaya and C. Hadjidakis and M. Hartig and D. Hasch and M. Hoek and Y. Holler and Y. Imazu and H. E. Jackson and H. S. Jo and R. Kaiser and G. Karyan and T. Keri and E. Kinney and A. Kisselev and N. Kobayashi and V. Korotkov and V. Kozlov and P. Kravchenko and V. G. Krivokhijine and L. Lagamba and L. Lapik{\'a}s and I. Lehmann and P. Lenisa and W. Lorenzon and B.-Q. Ma and D. Mahon and N. C. R. Makins and S. I. Manaenkov and L. Manfr{\'e} and Y. Mao and B. Marianski and A. Martinez Ossa and H. Marukyan and C. A. Miller and Y. Miyachi and A. Movsisyan and V. Muccifora and M. Murray and A. Mussgiller and E. Nappi and Y. Naryshkin and A. Nass and W.-D. Nowak and L. L. Pappalardo and R. Perez-Benito and A. Petrosyan and M. Raithel and P. E. Reimer and A. R. Reolon and C. Riedl and K. Rith and G. Rosner and A. Rostomyan and J. Rubin and D. Ryckbosch and Y. Salomatin and F. Sanftl and A. Sch{\"a}fer and G. Schnell and K. P. Sch{\"u}ler and B. Seitz and T.-A. Shibata and V. Shutov and M. Stancari and M. Statera and E. Steffens and J. J. M. Steijger and J. Stewart and S. Taroian and A. Terkulov and R. Truty and A. Trzcinski and M. Tytgat and Y. Haarlem and C. Hulse and D. Veretennikov and V. Vikhrov and I. Vilardi and S. Wang and S. Yaschenko and Z. Ye and S. Yen and W. Yu and V. Zagrebelnyy and D. Zeiler and B. Zihlmann and P. Zupranski and The HERMES Collaboration},
  journal={Journal of High Energy Physics},
  year={2012},
  volume={2012},
  pages={1-26}
}
A bstractBeam-helicity and beam-charge asymmetries in the hard exclusive leptoproduction of real photons from an unpolarised hydrogen target by a 27.6 GeV lepton beam are extracted from the Hermes data set of 2006-2007 using a missing-mass event selection technique. The asymmetry amplitudes extracted from this data set are more precise than those extracted from the earlier data set of 1996-2005 previously analysed in the same manner by Hermes. The results from the two data sets are compatible… CONTINUE READING

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