Observation of exclusive deeply virtual compton scattering in polarized electron beam asymmetry measurements

S. Stepanyan, V. D. Burkert, L. Elouadrhiri, G. S. Adams, E. Anciant, M. Anghinolfi, B. Asavapibhop, G. Audit, T. Auger, H. Avakian, J. Ball, S. Barrow, M. Battaglieri, K. Beard, M. Bektasoglu, P. Bertin, N. Bianchi, A. Biselli, S. Boiarinov, B. E. BonnerS. Bouchigny, D. Branford, W. K. Brooks, J. R. Calarco, D. S. Carman, B. Carnahan, L. Ciciani, P. L. Cole, A. Coleman, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, J. Cummings, P. V. Degtiarenko, H. Denizli, L. C. Dennis, E. De Sanctis, R. DeVita, K. V. Dharmawardane, C. Djalali, G. E. Dodge, D. Doré, D. Doughty, P. Dragovitsch, S. Dytman, M. Eckhause, H. Egiyan, K. S. Egiyan, A. Empl, R. Fatemi, R. J. Feuerbach, J. Ficenec, K. Fissum, T. A. Forest, A. P. Freyberger, H. Funsten, S. Gaff, M. Gai, M. Garçon, G. Gavalian, S. Gilad, G. P. Gilfoyle, K. Giovanetti, P. Girard, K. A. Griffioen, M. Guidal, M. Guillo, V. Gyurjyan, C. Hadjidakis, J. Hardie, D. Heddle, F. W. Hersman, K. Hicks, R. S. Hicks, M. Holtrop, J. Hu, C. E. Hyde-Wright, M. M. Ito, D. Jenkins, K. Joo, J. Kelley, M. Khandaker, D. H. Kim, K. Kim, K. Y. Kim, W. Kim, A. Klein, F. J. Klein, M. Klusman, M. Kossov, L. H. Kramer, S. E. Kuhn, J. M. Laget, D. Lawrence, A. Longhi, K. Lukashin, J. J. Manak, C. Marchand, S. McAleer, J. McCarthy, J. W C McNabb, B. A. Mecking, M. D. Mestayer, C. A. Meyer, K. Mikhailov, R. Minehart, M. Mirazita, R. Miskimen, L. Morand, V. Muccifora, J. Mueller, G. S. Mutchler, J. Napolitano, S. Nelson, S. Niccolai, G. Niculescu, I. Niculescu, R. A. Nivazov, A. Opper, G. O'Rielly, J. T. O'Brien, K. Park, E. Pasyuk, G. A. Peterson, S. Philips, N. Pivnyuk, D. Pocanic, O. Pogorelko, E. Polli, I. Popa, S. Pozdniakov, B. M. Preedom, J. W. Price, D. Protopopescu, L. M. Qin, B. A. Raue, A. R. Reolon, G. Riccardi, G. Ricco, M. Ripani, Barry Ritchie, F. Ronchetti, P. Rossi, D. Rowntree, P. D. Rubin, F. Sabatié, K. Sabourov, C. W. Salgado, V. Sapunenko, R. A. Schumacher, V. Serov, Y. G. Sharabian, J. Shaw, S. Simionatto, A. Skabelin, E. S. Smith, L. C. Smith, D. I. Sober, A. Stavinsky, P. Stoler, I. I. Strakovsky, R. Suleiman, M. Taiuti, S. Taylor, D. Tedeschi, R. Thompson, L. Todor, M. F. Vineyard, A. Vlassov, K. Wang, H. Weller, L. B. Weinstein, R. Welsh, D. P. Weygand, S. Whisnant, E. Wolin, A. Yegneswaran, J. Yun, J. Zhao, B. Zhang, Z. Zhou

Research output: Contribution to journalArticle

282 Citations (Scopus)

Abstract

The first measurement of the beam-spin asymmetry in exclusive electroproduction of real photons in the deeply inelastic regime was performed. A large asymmetry with sinφ modulation was observed as predicted by the interference of deeply virtual Compton scattering (DVCS) and the Bethe-Heitler process. The amplitude of the modulation was calculated to be about α=0.202±0.028. α was found to be directly proportional to the imaginary part of the DVCS amplitude, in leading-order and leading-twist perturbative quantum chromodynamic (QCD) corrections.

Original languageEnglish (US)
Article number182002
Pages (from-to)1820021-1820025
Number of pages5
JournalPhysical Review Letters
Volume87
Issue number18
StatePublished - Oct 29 2001

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asymmetry
electron beams
modulation
scattering
scattering amplitude
quantum chromodynamics
interference
photons

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Stepanyan, S., Burkert, V. D., Elouadrhiri, L., Adams, G. S., Anciant, E., Anghinolfi, M., ... Zhou, Z. (2001). Observation of exclusive deeply virtual compton scattering in polarized electron beam asymmetry measurements. Physical Review Letters, 87(18), 1820021-1820025. [182002].

Observation of exclusive deeply virtual compton scattering in polarized electron beam asymmetry measurements. / Stepanyan, S.; Burkert, V. D.; Elouadrhiri, L.; Adams, G. S.; Anciant, E.; Anghinolfi, M.; Asavapibhop, B.; Audit, G.; Auger, T.; Avakian, H.; Ball, J.; Barrow, S.; Battaglieri, M.; Beard, K.; Bektasoglu, M.; Bertin, P.; Bianchi, N.; Biselli, A.; Boiarinov, S.; Bonner, B. E.; Bouchigny, S.; Branford, D.; Brooks, W. K.; Calarco, J. R.; Carman, D. S.; Carnahan, B.; Ciciani, L.; Cole, P. L.; Coleman, A.; Cords, D.; Corvisiero, P.; Crabb, D.; Crannell, H.; Cummings, J.; Degtiarenko, P. V.; Denizli, H.; Dennis, L. C.; De Sanctis, E.; DeVita, R.; Dharmawardane, K. V.; Djalali, C.; Dodge, G. E.; Doré, D.; Doughty, D.; Dragovitsch, P.; Dytman, S.; Eckhause, M.; Egiyan, H.; Egiyan, K. S.; Empl, A.; Fatemi, R.; Feuerbach, R. J.; Ficenec, J.; Fissum, K.; Forest, T. A.; Freyberger, A. P.; Funsten, H.; Gaff, S.; Gai, M.; Garçon, M.; Gavalian, G.; Gilad, S.; Gilfoyle, G. P.; Giovanetti, K.; Girard, P.; Griffioen, K. A.; Guidal, M.; Guillo, M.; Gyurjyan, V.; Hadjidakis, C.; Hardie, J.; Heddle, D.; Hersman, F. W.; Hicks, K.; Hicks, R. S.; Holtrop, M.; Hu, J.; Hyde-Wright, C. E.; Ito, M. M.; Jenkins, D.; Joo, K.; Kelley, J.; Khandaker, M.; Kim, D. H.; Kim, K.; Kim, K. Y.; Kim, W.; Klein, A.; Klein, F. J.; Klusman, M.; Kossov, M.; Kramer, L. H.; Kuhn, S. E.; Laget, J. M.; Lawrence, D.; Longhi, A.; Lukashin, K.; Manak, J. J.; Marchand, C.; McAleer, S.; McCarthy, J.; McNabb, J. W C; Mecking, B. A.; Mestayer, M. D.; Meyer, C. A.; Mikhailov, K.; Minehart, R.; Mirazita, M.; Miskimen, R.; Morand, L.; Muccifora, V.; Mueller, J.; Mutchler, G. S.; Napolitano, J.; Nelson, S.; Niccolai, S.; Niculescu, G.; Niculescu, I.; Nivazov, R. A.; Opper, A.; O'Rielly, G.; O'Brien, J. T.; Park, K.; Pasyuk, E.; Peterson, G. A.; Philips, S.; Pivnyuk, N.; Pocanic, D.; Pogorelko, O.; Polli, E.; Popa, I.; Pozdniakov, S.; Preedom, B. M.; Price, J. W.; Protopopescu, D.; Qin, L. M.; Raue, B. A.; Reolon, A. R.; Riccardi, G.; Ricco, G.; Ripani, M.; Ritchie, Barry; Ronchetti, F.; Rossi, P.; Rowntree, D.; Rubin, P. D.; Sabatié, F.; Sabourov, K.; Salgado, C. W.; Sapunenko, V.; Schumacher, R. A.; Serov, V.; Sharabian, Y. G.; Shaw, J.; Simionatto, S.; Skabelin, A.; Smith, E. S.; Smith, L. C.; Sober, D. I.; Stavinsky, A.; Stoler, P.; Strakovsky, I. I.; Suleiman, R.; Taiuti, M.; Taylor, S.; Tedeschi, D.; Thompson, R.; Todor, L.; Vineyard, M. F.; Vlassov, A.; Wang, K.; Weller, H.; Weinstein, L. B.; Welsh, R.; Weygand, D. P.; Whisnant, S.; Wolin, E.; Yegneswaran, A.; Yun, J.; Zhao, J.; Zhang, B.; Zhou, Z.

In: Physical Review Letters, Vol. 87, No. 18, 182002, 29.10.2001, p. 1820021-1820025.

Research output: Contribution to journalArticle

Stepanyan, S, Burkert, VD, Elouadrhiri, L, Adams, GS, Anciant, E, Anghinolfi, M, Asavapibhop, B, Audit, G, Auger, T, Avakian, H, Ball, J, Barrow, S, Battaglieri, M, Beard, K, Bektasoglu, M, Bertin, P, Bianchi, N, Biselli, A, Boiarinov, S, Bonner, BE, Bouchigny, S, Branford, D, Brooks, WK, Calarco, JR, Carman, DS, Carnahan, B, Ciciani, L, Cole, PL, Coleman, A, Cords, D, Corvisiero, P, Crabb, D, Crannell, H, Cummings, J, Degtiarenko, PV, Denizli, H, Dennis, LC, De Sanctis, E, DeVita, R, Dharmawardane, KV, Djalali, C, Dodge, GE, Doré, D, Doughty, D, Dragovitsch, P, Dytman, S, Eckhause, M, Egiyan, H, Egiyan, KS, Empl, A, Fatemi, R, Feuerbach, RJ, Ficenec, J, Fissum, K, Forest, TA, Freyberger, AP, Funsten, H, Gaff, S, Gai, M, Garçon, M, Gavalian, G, Gilad, S, Gilfoyle, GP, Giovanetti, K, Girard, P, Griffioen, KA, Guidal, M, Guillo, M, Gyurjyan, V, Hadjidakis, C, Hardie, J, Heddle, D, Hersman, FW, Hicks, K, Hicks, RS, Holtrop, M, Hu, J, Hyde-Wright, CE, Ito, MM, Jenkins, D, Joo, K, Kelley, J, Khandaker, M, Kim, DH, Kim, K, Kim, KY, Kim, W, Klein, A, Klein, FJ, Klusman, M, Kossov, M, Kramer, LH, Kuhn, SE, Laget, JM, Lawrence, D, Longhi, A, Lukashin, K, Manak, JJ, Marchand, C, McAleer, S, McCarthy, J, McNabb, JWC, Mecking, BA, Mestayer, MD, Meyer, CA, Mikhailov, K, Minehart, R, Mirazita, M, Miskimen, R, Morand, L, Muccifora, V, Mueller, J, Mutchler, GS, Napolitano, J, Nelson, S, Niccolai, S, Niculescu, G, Niculescu, I, Nivazov, RA, Opper, A, O'Rielly, G, O'Brien, JT, Park, K, Pasyuk, E, Peterson, GA, Philips, S, Pivnyuk, N, Pocanic, D, Pogorelko, O, Polli, E, Popa, I, Pozdniakov, S, Preedom, BM, Price, JW, Protopopescu, D, Qin, LM, Raue, BA, Reolon, AR, Riccardi, G, Ricco, G, Ripani, M, Ritchie, B, Ronchetti, F, Rossi, P, Rowntree, D, Rubin, PD, Sabatié, F, Sabourov, K, Salgado, CW, Sapunenko, V, Schumacher, RA, Serov, V, Sharabian, YG, Shaw, J, Simionatto, S, Skabelin, A, Smith, ES, Smith, LC, Sober, DI, Stavinsky, A, Stoler, P, Strakovsky, II, Suleiman, R, Taiuti, M, Taylor, S, Tedeschi, D, Thompson, R, Todor, L, Vineyard, MF, Vlassov, A, Wang, K, Weller, H, Weinstein, LB, Welsh, R, Weygand, DP, Whisnant, S, Wolin, E, Yegneswaran, A, Yun, J, Zhao, J, Zhang, B & Zhou, Z 2001, 'Observation of exclusive deeply virtual compton scattering in polarized electron beam asymmetry measurements', Physical Review Letters, vol. 87, no. 18, 182002, pp. 1820021-1820025.
Stepanyan S, Burkert VD, Elouadrhiri L, Adams GS, Anciant E, Anghinolfi M et al. Observation of exclusive deeply virtual compton scattering in polarized electron beam asymmetry measurements. Physical Review Letters. 2001 Oct 29;87(18):1820021-1820025. 182002.
Stepanyan, S. ; Burkert, V. D. ; Elouadrhiri, L. ; Adams, G. S. ; Anciant, E. ; Anghinolfi, M. ; Asavapibhop, B. ; Audit, G. ; Auger, T. ; Avakian, H. ; Ball, J. ; Barrow, S. ; Battaglieri, M. ; Beard, K. ; Bektasoglu, M. ; Bertin, P. ; Bianchi, N. ; Biselli, A. ; Boiarinov, S. ; Bonner, B. E. ; Bouchigny, S. ; Branford, D. ; Brooks, W. K. ; Calarco, J. R. ; Carman, D. S. ; Carnahan, B. ; Ciciani, L. ; Cole, P. L. ; Coleman, A. ; Cords, D. ; Corvisiero, P. ; Crabb, D. ; Crannell, H. ; Cummings, J. ; Degtiarenko, P. V. ; Denizli, H. ; Dennis, L. C. ; De Sanctis, E. ; DeVita, R. ; Dharmawardane, K. V. ; Djalali, C. ; Dodge, G. E. ; Doré, D. ; Doughty, D. ; Dragovitsch, P. ; Dytman, S. ; Eckhause, M. ; Egiyan, H. ; Egiyan, K. S. ; Empl, A. ; Fatemi, R. ; Feuerbach, R. J. ; Ficenec, J. ; Fissum, K. ; Forest, T. A. ; Freyberger, A. P. ; Funsten, H. ; Gaff, S. ; Gai, M. ; Garçon, M. ; Gavalian, G. ; Gilad, S. ; Gilfoyle, G. P. ; Giovanetti, K. ; Girard, P. ; Griffioen, K. A. ; Guidal, M. ; Guillo, M. ; Gyurjyan, V. ; Hadjidakis, C. ; Hardie, J. ; Heddle, D. ; Hersman, F. W. ; Hicks, K. ; Hicks, R. S. ; Holtrop, M. ; Hu, J. ; Hyde-Wright, C. E. ; Ito, M. M. ; Jenkins, D. ; Joo, K. ; Kelley, J. ; Khandaker, M. ; Kim, D. H. ; Kim, K. ; Kim, K. Y. ; Kim, W. ; Klein, A. ; Klein, F. J. ; Klusman, M. ; Kossov, M. ; Kramer, L. H. ; Kuhn, S. E. ; Laget, J. M. ; Lawrence, D. ; Longhi, A. ; Lukashin, K. ; Manak, J. J. ; Marchand, C. ; McAleer, S. ; McCarthy, J. ; McNabb, J. W C ; Mecking, B. A. ; Mestayer, M. D. ; Meyer, C. A. ; Mikhailov, K. ; Minehart, R. ; Mirazita, M. ; Miskimen, R. ; Morand, L. ; Muccifora, V. ; Mueller, J. ; Mutchler, G. S. ; Napolitano, J. ; Nelson, S. ; Niccolai, S. ; Niculescu, G. ; Niculescu, I. ; Nivazov, R. A. ; Opper, A. ; O'Rielly, G. ; O'Brien, J. T. ; Park, K. ; Pasyuk, E. ; Peterson, G. A. ; Philips, S. ; Pivnyuk, N. ; Pocanic, D. ; Pogorelko, O. ; Polli, E. ; Popa, I. ; Pozdniakov, S. ; Preedom, B. M. ; Price, J. W. ; Protopopescu, D. ; Qin, L. M. ; Raue, B. A. ; Reolon, A. R. ; Riccardi, G. ; Ricco, G. ; Ripani, M. ; Ritchie, Barry ; Ronchetti, F. ; Rossi, P. ; Rowntree, D. ; Rubin, P. D. ; Sabatié, F. ; Sabourov, K. ; Salgado, C. W. ; Sapunenko, V. ; Schumacher, R. A. ; Serov, V. ; Sharabian, Y. G. ; Shaw, J. ; Simionatto, S. ; Skabelin, A. ; Smith, E. S. ; Smith, L. C. ; Sober, D. I. ; Stavinsky, A. ; Stoler, P. ; Strakovsky, I. I. ; Suleiman, R. ; Taiuti, M. ; Taylor, S. ; Tedeschi, D. ; Thompson, R. ; Todor, L. ; Vineyard, M. F. ; Vlassov, A. ; Wang, K. ; Weller, H. ; Weinstein, L. B. ; Welsh, R. ; Weygand, D. P. ; Whisnant, S. ; Wolin, E. ; Yegneswaran, A. ; Yun, J. ; Zhao, J. ; Zhang, B. ; Zhou, Z. / Observation of exclusive deeply virtual compton scattering in polarized electron beam asymmetry measurements. In: Physical Review Letters. 2001 ; Vol. 87, No. 18. pp. 1820021-1820025.
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title = "Observation of exclusive deeply virtual compton scattering in polarized electron beam asymmetry measurements",
abstract = "The first measurement of the beam-spin asymmetry in exclusive electroproduction of real photons in the deeply inelastic regime was performed. A large asymmetry with sinφ modulation was observed as predicted by the interference of deeply virtual Compton scattering (DVCS) and the Bethe-Heitler process. The amplitude of the modulation was calculated to be about α=0.202±0.028. α was found to be directly proportional to the imaginary part of the DVCS amplitude, in leading-order and leading-twist perturbative quantum chromodynamic (QCD) corrections.",
author = "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 R. DeVita 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 A. Empl and R. Fatemi and Feuerbach, {R. J.} and J. Ficenec and K. Fissum and Forest, {T. A.} and Freyberger, {A. P.} and H. Funsten and S. Gaff and M. Gai and M. Gar{\cc}on and G. Gavalian and S. Gilad and Gilfoyle, {G. P.} and K. Giovanetti and P. Girard and Griffioen, {K. A.} and M. Guidal and M. Guillo and V. Gyurjyan and C. Hadjidakis and J. Hardie and D. Heddle and Hersman, {F. W.} and K. Hicks and Hicks, {R. S.} and M. Holtrop and J. Hu and Hyde-Wright, {C. E.} and Ito, {M. M.} and D. Jenkins and K. Joo and J. Kelley and M. Khandaker and Kim, {D. H.} and K. Kim and Kim, {K. Y.} and W. Kim and A. Klein and Klein, {F. J.} and M. Klusman and M. Kossov and Kramer, {L. H.} and Kuhn, {S. E.} and Laget, {J. M.} and D. Lawrence and A. Longhi and K. Lukashin and Manak, {J. J.} and C. Marchand and S. McAleer and J. McCarthy and McNabb, {J. W C} and Mecking, {B. A.} and Mestayer, {M. D.} and Meyer, {C. A.} and K. Mikhailov and R. Minehart and M. Mirazita and R. Miskimen and L. Morand and V. Muccifora and J. Mueller and Mutchler, {G. S.} and J. Napolitano and S. Nelson and S. Niccolai and G. Niculescu and I. Niculescu and Nivazov, {R. A.} and A. Opper and G. O'Rielly and O'Brien, {J. T.} and K. Park and E. Pasyuk and Peterson, {G. A.} and S. Philips and N. Pivnyuk and D. Pocanic and O. Pogorelko and E. Polli and I. Popa and S. Pozdniakov and Preedom, {B. M.} and Price, {J. W.} and D. Protopopescu and Qin, {L. M.} and Raue, {B. A.} and Reolon, {A. R.} and G. Riccardi and G. Ricco and M. Ripani and Barry Ritchie and F. Ronchetti and P. Rossi and D. Rowntree and Rubin, {P. D.} and F. Sabati{\'e} and K. Sabourov and Salgado, {C. W.} and V. Sapunenko and Schumacher, {R. A.} and V. Serov and Sharabian, {Y. G.} and J. Shaw and S. Simionatto and A. Skabelin and Smith, {E. S.} and Smith, {L. C.} and Sober, {D. I.} and A. Stavinsky and P. Stoler and Strakovsky, {I. I.} and R. Suleiman and M. Taiuti and S. Taylor and D. Tedeschi and R. Thompson and L. Todor and Vineyard, {M. F.} and A. Vlassov and K. Wang and H. Weller and Weinstein, {L. B.} and R. Welsh and Weygand, {D. P.} and S. Whisnant and E. Wolin and A. Yegneswaran and J. Yun and J. Zhao and B. Zhang and Z. Zhou",
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pages = "1820021--1820025",
journal = "Physical Review Letters",
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TY - JOUR

T1 - Observation of exclusive deeply virtual compton scattering in polarized electron beam asymmetry measurements

AU - Stepanyan, S.

AU - Burkert, V. D.

AU - Elouadrhiri, L.

AU - Adams, G. S.

AU - Anciant, E.

AU - Anghinolfi, M.

AU - Asavapibhop, B.

AU - Audit, G.

AU - Auger, T.

AU - Avakian, H.

AU - Ball, J.

AU - Barrow, S.

AU - Battaglieri, M.

AU - Beard, K.

AU - Bektasoglu, M.

AU - Bertin, P.

AU - Bianchi, N.

AU - Biselli, A.

AU - Boiarinov, S.

AU - Bonner, B. E.

AU - Bouchigny, S.

AU - Branford, D.

AU - Brooks, W. K.

AU - Calarco, J. R.

AU - Carman, D. S.

AU - Carnahan, B.

AU - Ciciani, L.

AU - Cole, P. L.

AU - Coleman, A.

AU - Cords, D.

AU - Corvisiero, P.

AU - Crabb, D.

AU - Crannell, H.

AU - Cummings, J.

AU - Degtiarenko, P. V.

AU - Denizli, H.

AU - Dennis, L. C.

AU - De Sanctis, E.

AU - DeVita, R.

AU - Dharmawardane, K. V.

AU - Djalali, C.

AU - Dodge, G. E.

AU - Doré, D.

AU - Doughty, D.

AU - Dragovitsch, P.

AU - Dytman, S.

AU - Eckhause, M.

AU - Egiyan, H.

AU - Egiyan, K. S.

AU - Empl, A.

AU - Fatemi, R.

AU - Feuerbach, R. J.

AU - Ficenec, J.

AU - Fissum, K.

AU - Forest, T. A.

AU - Freyberger, A. P.

AU - Funsten, H.

AU - Gaff, S.

AU - Gai, M.

AU - Garçon, M.

AU - Gavalian, G.

AU - Gilad, S.

AU - Gilfoyle, G. P.

AU - Giovanetti, K.

AU - Girard, P.

AU - Griffioen, K. A.

AU - Guidal, M.

AU - Guillo, M.

AU - Gyurjyan, V.

AU - Hadjidakis, C.

AU - Hardie, J.

AU - Heddle, D.

AU - Hersman, F. W.

AU - Hicks, K.

AU - Hicks, R. S.

AU - Holtrop, M.

AU - Hu, J.

AU - Hyde-Wright, C. E.

AU - Ito, M. M.

AU - Jenkins, D.

AU - Joo, K.

AU - Kelley, J.

AU - Khandaker, M.

AU - Kim, D. H.

AU - Kim, K.

AU - Kim, K. Y.

AU - Kim, W.

AU - Klein, A.

AU - Klein, F. J.

AU - Klusman, M.

AU - Kossov, M.

AU - Kramer, L. H.

AU - Kuhn, S. E.

AU - Laget, J. M.

AU - Lawrence, D.

AU - Longhi, A.

AU - Lukashin, K.

AU - Manak, J. J.

AU - Marchand, C.

AU - McAleer, S.

AU - McCarthy, J.

AU - McNabb, J. W C

AU - Mecking, B. A.

AU - Mestayer, M. D.

AU - Meyer, C. A.

AU - Mikhailov, K.

AU - Minehart, R.

AU - Mirazita, M.

AU - Miskimen, R.

AU - Morand, L.

AU - Muccifora, V.

AU - Mueller, J.

AU - Mutchler, G. S.

AU - Napolitano, J.

AU - Nelson, S.

AU - Niccolai, S.

AU - Niculescu, G.

AU - Niculescu, I.

AU - Nivazov, R. A.

AU - Opper, A.

AU - O'Rielly, G.

AU - O'Brien, J. T.

AU - Park, K.

AU - Pasyuk, E.

AU - Peterson, G. A.

AU - Philips, S.

AU - Pivnyuk, N.

AU - Pocanic, D.

AU - Pogorelko, O.

AU - Polli, E.

AU - Popa, I.

AU - Pozdniakov, S.

AU - Preedom, B. M.

AU - Price, J. W.

AU - Protopopescu, D.

AU - Qin, L. M.

AU - Raue, B. A.

AU - Reolon, A. R.

AU - Riccardi, G.

AU - Ricco, G.

AU - Ripani, M.

AU - Ritchie, Barry

AU - Ronchetti, F.

AU - Rossi, P.

AU - Rowntree, D.

AU - Rubin, P. D.

AU - Sabatié, F.

AU - Sabourov, K.

AU - Salgado, C. W.

AU - Sapunenko, V.

AU - Schumacher, R. A.

AU - Serov, V.

AU - Sharabian, Y. G.

AU - Shaw, J.

AU - Simionatto, S.

AU - Skabelin, A.

AU - Smith, E. S.

AU - Smith, L. C.

AU - Sober, D. I.

AU - Stavinsky, A.

AU - Stoler, P.

AU - Strakovsky, I. I.

AU - Suleiman, R.

AU - Taiuti, M.

AU - Taylor, S.

AU - Tedeschi, D.

AU - Thompson, R.

AU - Todor, L.

AU - Vineyard, M. F.

AU - Vlassov, A.

AU - Wang, K.

AU - Weller, H.

AU - Weinstein, L. B.

AU - Welsh, R.

AU - Weygand, D. P.

AU - Whisnant, S.

AU - Wolin, E.

AU - Yegneswaran, A.

AU - Yun, J.

AU - Zhao, J.

AU - Zhang, B.

AU - Zhou, Z.

PY - 2001/10/29

Y1 - 2001/10/29

N2 - The first measurement of the beam-spin asymmetry in exclusive electroproduction of real photons in the deeply inelastic regime was performed. A large asymmetry with sinφ modulation was observed as predicted by the interference of deeply virtual Compton scattering (DVCS) and the Bethe-Heitler process. The amplitude of the modulation was calculated to be about α=0.202±0.028. α was found to be directly proportional to the imaginary part of the DVCS amplitude, in leading-order and leading-twist perturbative quantum chromodynamic (QCD) corrections.

AB - The first measurement of the beam-spin asymmetry in exclusive electroproduction of real photons in the deeply inelastic regime was performed. A large asymmetry with sinφ modulation was observed as predicted by the interference of deeply virtual Compton scattering (DVCS) and the Bethe-Heitler process. The amplitude of the modulation was calculated to be about α=0.202±0.028. α was found to be directly proportional to the imaginary part of the DVCS amplitude, in leading-order and leading-twist perturbative quantum chromodynamic (QCD) corrections.

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M3 - Article

AN - SCOPUS:0035968836

VL - 87

SP - 1820021

EP - 1820025

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 18

M1 - 182002

ER -