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

@inproceedings{Airapetian2012BeamhelicityAB,
  title={Beam-helicity and beam-charge asymmetries associated with deeply virtual Compton scattering on the unpolarised proton},
  author={The Hermes collaboration A. Airapetian and Noaryr Akopov and Z. Akopov and E. C. Aschenauer and Wlłodzimierz Augustyniak and Raffie Avakian and Arthur E. Avetissian and Eduard Avetisyan and Henk P. Blok and Aldar Borissov and Justine Bowles and V. Bryzgalov and Jatu Burns and Marta Capiluppi and Gionata Capitani and Evaristo Cisbani and Giuseppe Ciullo and Marco M. Contalbrigo and Paola F. Dalpiaz and Willem Deconinck and Roberto De Leo and Lorenzo De Nardo and Enzo De Sanctis and Markus Diefenthaler and Pasquale Di Nezza and Mike Duren and Markus Ehrenfried and Garegin Elbakian and Frank Ellinghaus and Alessandra Fantoni and L. Felawka and Salvatore Frullani and Darren Gabbert and Galina Gapienko and V. A. Gapienko and Fulvio Garibaldi and Gregory Gavrilov and Francesca Giordano and Stephen Gliske and Mayya Golembiovskaya and Cynthia Marie Hadjidakis and Martin A. J. Hartig and Delia Hasch and M Michiel Hoek and Yvonne Holler and Yoshimitsu Imazu and Howard E. Jackson and H. – S. Jo and Robin Kaiser and Gevorg Ararat Karyan and Tibor Keri and Elizabeth Kinney and Alexander Kisselev and Natsuka Kobayashi and Vitalii Korotkov and Vladimir A. Kozlov and Pavlo Kravchenko and V. G. Krivokhijine and Luigi Lagamba and L. Lapik'as and I. Lehmann and Paolo Lenisa and Wolfgang Lorenzon and Derek Mahon and Naomi C. R. Makins and Serguei Manaenkov and L. Manfr'e and Yaxian Mao and Bohdan Mariański and Alberto Martinez de la Ossa and Hrachya H. Marukyan and Clark Anson Miller and Yousuke Miyachi and Ashley Movsisyan and Valeria Muccifora and Michael Murray and Andreas Mussgiller and E. Nappi and Yu. G. Naryshkin and Andrea Nass and W. D. Nowak and Luciano Libero Pappalardo and R. P{\'e}rez-Benito and Artem Petrosyan and Marc Raithel and Paul Edwin Reimer and Anna Rita Reolon and Caroline Riedl and Klaus Rith and Guenther Rosner and Armine Rostomyan and Johan Rubin and Dirk Ryckbosch and Yu. Salomatin and Florian Sanftl and Andreas Schafer and Gregory Schnell and Kelsey Schuler and Bj{\"o}rn Ingo Seitz and Valeriy Shutov and Michele Stancari and Marco Statera and Edith Steffens and J. J. M. Steijger and Jason Stewart and S. P. Taroian and A. R. Terkulov and Rebecca M. Truty and Aleksander Trzcinski and Michael Tytgat and Yves van Haarlem and Charlotte Van Hulse and Denis Veretennikov and Vi Vikhrov and I. Vilardi and Song Gui Wang and Sergey Yaschenko and Zhen-W. Ye and S. Yen and Wenxian Yu and Vitaly Zagrebelnyy and Dietmar Zeiler and Benedikt Zihlmann and P. Fick D. Zupranski},
  year={2012}
}
Beam-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 with each… CONTINUE READING

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