@article{e594490d16be4d7a892044e782fc6139,
title = "Observation of exclusive deeply virtual compton scattering in polarized electron beam asymmetry measurements",
abstract = "We report the first results of the beam-spin asymmetry measured in the reaction e→p → epγ at a beam energy of 4.25 GeV. A large asymmetry with a sinφ modulation is observed, as predicted for the interference term of deeply virtual compton scattering (DVCS) and the Bethe-Heitler process. The amplitude of this modulation is α=0.202±0.028. In leading-order and leading-twist perturbative QCD, the α is directly proportional to the imaginary part of the DVCS amplitude.",
author = "{University of California at Los Angeles, Department of Physics and Astronomy, Los Angeles, CA 90095} and {CLAS Collaboration} and S. Stepanyan and Burkert, {V. D.} and L. Elouadrhiri and Adams, {G. S.} and E. Anciant and M. Anghinolfi and B. Asavapibhop and G. Audit and T. Auger and H. Avakian and J. Ball and S. Barrow and M. Battaglieri and K. Beard and M. Bektasoglu and P. Bertin and N. Bianchi and A. Biselli and S. Boiarinov and Bonner, {B. E.} and S. Bouchigny and D. Branford and Brooks, {W. K.} and Calarco, {J. R.} and Carman, {D. S.} and B. Carnahan and L. Ciciani and Cole, {P. L.} and A. Coleman and D. Cords and P. Corvisiero and D. Crabb and H. Crannell and J. Cummings and Degtiarenko, {P. V.} and H. Denizli and Dennis, {L. C.} and {De Sanctis}, E. and {De Vita}, R. and Dharmawardane, {K. V.} and C. Djalali and Dodge, {G. E.} and D. Dor{\'e} and D. Doughty and P. Dragovitsch and S. Dytman and M. Eckhause and H. Egiyan and Egiyan, {K. S.} and Barry Ritchie",
year = "2001",
month = jan,
day = "1",
doi = "10.1103/PhysRevLett.87.182002",
language = "English (US)",
volume = "87",
pages = "182002",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "18",
}