Separation of contributions from deeply virtual Compton scattering and its interference with the Bethe-Heitler process in measurements on a hydrogen target

A. Airapetian; N. Akopov; Z. Akopov; E.C. Aschenauer; W. Augustyniak; R. Avakian; A. Avetissian; E. Avetisyan; B. Ball; S. Belostotski; H. P. Blok; A. Borissov; J. Bowles; V. Bryzgalov; J. Burns; G.P. Capitani; E. Cisbani; G. Ciullo; M. Contalbrigo; P.F. Dalpiaz; W. Deconinck; R. De Leo; L.G. Nardo; E. De Sanctis; M. Diefenthaler; P. Di Nezza; M. Düren; M. Ehrenfried; G. Elbakian; F. Ellinghaus; R. Fabbri; A. Fantoni; L. Felawka; S. Frullani; D. Gabbert; G. Gapienko; V. Gapienko; F. Garibaldi; G. Gavrilov; V. Gharibyan; F. Giordano; S. Gliske; C. Hadjidakis; M. Hartig; D. Hasch; William G Hill; A. Hillenbrand; M. van Hoek; Y. Holler; I. Hristova; The HERMES collaboration

doi:10.1088/1126-6708/2009/11/083

Separation of contributions from deeply virtual Compton scattering and its interference with the Bethe-Heitler process in measurements on a hydrogen target

A. Airapetian, N. Akopov, Z. Akopov, E.C. Aschenauer, W. Augustyniak, R. Avakian, A. Avetissian, E. Avetisyan, B. Ball, S. Belostotski, H. P. Blok, A. Borissov, J. Bowles, V. Bryzgalov, J. Burns, G.P. Capitani, E. Cisbani, G. Ciullo, M. Contalbrigo, P.F. DalpiazW. Deconinck, R. De Leo, L.G. Nardo, E. De Sanctis, M. Diefenthaler, P. Di Nezza, M. Düren, M. Ehrenfried, G. Elbakian, F. Ellinghaus, R. Fabbri, A. Fantoni, L. Felawka, S. Frullani, D. Gabbert, G. Gapienko, V. Gapienko, F. Garibaldi, G. Gavrilov, V. Gharibyan, F. Giordano, S. Gliske, C. Hadjidakis, M. Hartig, D. Hasch, William G Hill, A. Hillenbrand, M. van Hoek, Y. Holler, I. Hristova, The HERMES collaboration

Biophotonics and Medical Imaging

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Abstract

Hard exclusive leptoproduction of real photons from an unpolarized proton target is studied in an effort to elucidate generalized parton distributions. The data accumulated during the years 1996-2005 with the HERMES spectrometer are analyzed to yield asymmetries with respect to the combined dependence of the cross section on beam helicity and charge, thereby revealing previously unseparated contributions from deeply virtual Compton scattering and its interference with the Bethe-Heitler process. The integrated luminosity is sufficient to show correlated dependences on two kinematic variables, and provides the most precise determination of the dependence on only the beam charge.

Original language	English
Journal	Journal of High Energy Physics
Volume	2009
Issue number	11
DOIs	https://doi.org/10.1088/1126-6708/2009/11/083
Publication status	Published - 18 Nov 2009

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Times Cited: 0

Keywords

Lepton-nucleon scattering

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Airapetian, A., Akopov, N., Akopov, Z., Aschenauer, E. C., Augustyniak, W., Avakian, R., Avetissian, A., Avetisyan, E., Ball, B., Belostotski, S., Blok, H. P., Borissov, A., Bowles, J., Bryzgalov, V., Burns, J., Capitani, G. P., Cisbani, E., Ciullo, G., Contalbrigo, M., ... The HERMES collaboration (2009). Separation of contributions from deeply virtual Compton scattering and its interference with the Bethe-Heitler process in measurements on a hydrogen target. Journal of High Energy Physics, 2009(11). https://doi.org/10.1088/1126-6708/2009/11/083

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title = "Separation of contributions from deeply virtual Compton scattering and its interference with the Bethe-Heitler process in measurements on a hydrogen target",

abstract = "Hard exclusive leptoproduction of real photons from an unpolarized proton target is studied in an effort to elucidate generalized parton distributions. The data accumulated during the years 1996-2005 with the HERMES spectrometer are analyzed to yield asymmetries with respect to the combined dependence of the cross section on beam helicity and charge, thereby revealing previously unseparated contributions from deeply virtual Compton scattering and its interference with the Bethe-Heitler process. The integrated luminosity is sufficient to show correlated dependences on two kinematic variables, and provides the most precise determination of the dependence on only the beam charge.",

keywords = "Lepton-nucleon scattering",

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 B. Ball and S. Belostotski and Blok, {H. P.} and A. Borissov and J. Bowles and V. Bryzgalov and J. Burns and G.P. Capitani and E. Cisbani and G. Ciullo and M. Contalbrigo and P.F. Dalpiaz and W. Deconinck and {De Leo}, R. and L.G. Nardo and {De Sanctis}, E. and M. Diefenthaler and {Di Nezza}, P. 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 V. Gharibyan and F. Giordano and S. Gliske and C. Hadjidakis and M. Hartig and D. Hasch and Hill, {William G} and A. Hillenbrand and {van Hoek}, M. and Y. Holler and I. Hristova and {The HERMES collaboration}",

note = "Times Cited: 0",

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month = nov,

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Airapetian, A, Akopov, N, Akopov, Z, Aschenauer, EC, Augustyniak, W, Avakian, R, Avetissian, A, Avetisyan, E, Ball, B, Belostotski, S, Blok, HP, Borissov, A, Bowles, J, Bryzgalov, V, Burns, J, Capitani, GP, Cisbani, E, Ciullo, G, Contalbrigo, M, Dalpiaz, PF, Deconinck, W, De Leo, R, Nardo, LG, De Sanctis, E, Diefenthaler, M, Di Nezza, P, Düren, M, Ehrenfried, M, Elbakian, G, Ellinghaus, F, Fabbri, R, Fantoni, A, Felawka, L, Frullani, S, Gabbert, D, Gapienko, G, Gapienko, V, Garibaldi, F, Gavrilov, G, Gharibyan, V, Giordano, F, Gliske, S, Hadjidakis, C, Hartig, M, Hasch, D, Hill, WG, Hillenbrand, A, van Hoek, M, Holler, Y, Hristova, I & The HERMES collaboration 2009, 'Separation of contributions from deeply virtual Compton scattering and its interference with the Bethe-Heitler process in measurements on a hydrogen target', Journal of High Energy Physics, vol. 2009, no. 11. https://doi.org/10.1088/1126-6708/2009/11/083

TY - JOUR

T1 - Separation of contributions from deeply virtual Compton scattering and its interference with the Bethe-Heitler process in measurements on a hydrogen target

AU - Airapetian, A.

AU - Akopov, N.

AU - Akopov, Z.

AU - Aschenauer, E.C.

AU - Augustyniak, W.

AU - Avakian, R.

AU - Avetissian, A.

AU - Avetisyan, E.

AU - Ball, B.

AU - Belostotski, S.

AU - Blok, H. P.

AU - Borissov, A.

AU - Bowles, J.

AU - Bryzgalov, V.

AU - Burns, J.

AU - Capitani, G.P.

AU - Cisbani, E.

AU - Ciullo, G.

AU - Contalbrigo, M.

AU - Dalpiaz, P.F.

AU - Deconinck, W.

AU - De Leo, R.

AU - Nardo, L.G.

AU - De Sanctis, E.

AU - Diefenthaler, M.

AU - Di Nezza, P.

AU - Düren, M.

AU - Ehrenfried, M.

AU - Elbakian, G.

AU - Ellinghaus, F.

AU - Fabbri, R.

AU - Fantoni, A.

AU - Felawka, L.

AU - Frullani, S.

AU - Gabbert, D.

AU - Gapienko, G.

AU - Gapienko, V.

AU - Garibaldi, F.

AU - Gavrilov, G.

AU - Gharibyan, V.

AU - Giordano, F.

AU - Gliske, S.

AU - Hadjidakis, C.

AU - Hartig, M.

AU - Hasch, D.

AU - Hill, William G

AU - Hillenbrand, A.

AU - van Hoek, M.

AU - Holler, Y.

AU - Hristova, I.

AU - The HERMES collaboration

N1 - Times Cited: 0

PY - 2009/11/18

Y1 - 2009/11/18

N2 - Hard exclusive leptoproduction of real photons from an unpolarized proton target is studied in an effort to elucidate generalized parton distributions. The data accumulated during the years 1996-2005 with the HERMES spectrometer are analyzed to yield asymmetries with respect to the combined dependence of the cross section on beam helicity and charge, thereby revealing previously unseparated contributions from deeply virtual Compton scattering and its interference with the Bethe-Heitler process. The integrated luminosity is sufficient to show correlated dependences on two kinematic variables, and provides the most precise determination of the dependence on only the beam charge.

AB - Hard exclusive leptoproduction of real photons from an unpolarized proton target is studied in an effort to elucidate generalized parton distributions. The data accumulated during the years 1996-2005 with the HERMES spectrometer are analyzed to yield asymmetries with respect to the combined dependence of the cross section on beam helicity and charge, thereby revealing previously unseparated contributions from deeply virtual Compton scattering and its interference with the Bethe-Heitler process. The integrated luminosity is sufficient to show correlated dependences on two kinematic variables, and provides the most precise determination of the dependence on only the beam charge.

KW - Lepton-nucleon scattering

UR - http://www.scopus.com/inward/record.url?scp=84988891203&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84988891203&partnerID=8YFLogxK

U2 - 10.1088/1126-6708/2009/11/083

DO - 10.1088/1126-6708/2009/11/083

M3 - Article

SN - 1126-6708

VL - 2009

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 11

ER -

Separation of contributions from deeply virtual Compton scattering and its interference with the Bethe-Heitler process in measurements on a hydrogen target

Abstract

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Keywords

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