Exclusive leptoproduction of real photons on a longitudinally polarised hydrogen target

A. Airapetian; N. Akopov; Z. Akopov; E. C. Aschenauer; W. Augustyniak; R. Avakian; A. Avetissian; E. Avetisyan; B. Ball; S. Belostotski; N. Bianchi; H. P. Blok; H. Böttcher; A. Borissov; J. Bowles; I. Brodski; V. Bryzgalov; J. Burns; M. Capiluppi; G. P. Capitani; E. Cisbani; G. Ciullo; M. Contalbrigo; P. F. Dalpiaz; W. Deconinck; R. De Leo; L. De 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; M. Golembiovskaya; C. Hadjidakis; M. Hartig; D. Hasch; G. Hill; A. Hillenbrand; M. Hoek; Y. Holler; I. Hristova; Y. Imazu; A. Ivanilov; A. Izotov; H. E. Jackson; H. S. Jo; S. Joosten; R. Kaiser; G. Karyan; T. Keri; E. Kinney; A. Kisselev; N. Kobayashi; V. Korotkov; V. Kozlov; P. Kravchenko; V. G. Krivokhijine; L. Lagamba; R. Lamb; L. Lapikás; I. Lehmann; P. Lenisa; L. A. Linden-Levy; A. López Ruiz; W. Lorenzon; X. G. Lu; X. R. Lu; B. Q. Ma; D. Mahon; N. C.R. Makins; S. I. Manaenkov; L. Manfré; Y. Mao; B. Marianski; A. Martinez De La Ossa; H. Marukyan; C. A. Miller; Y. Miyachi; A. Movsisyan; V. Muccifora; M. Murray; A. Mussgiller; E. Nappi; Y. Naryshkin; A. Nass; M. Negodaev; W. D. Nowak; L. L. Pappalardo; R. Perez-Benito; N. Pickert; M. Raithel; P. E. Reimer; A. R. Reolon; C. Riedl; K. Rith; G. Rosner; A. Rostomyan; J. Rubin; D. Ryckbosch; Y. Salomatin; F. Sanftl; A. Schäfer; G. Schnell; K. P. Schüler; B. Seitz; T. A. Shibata; V. Shutov; M. Stancari; M. Statera; E. Steffens; J. J.M. Steijger; H. Stenzel; J. Stewart; F. Stinzing; S. Taroian; A. Terkulov; A. Trzcinski; M. Tytgat; A. Vandenbroucke; P. B. Van Der Nat; Y. Van Haarlem; C. Van Hulse; D. Veretennikov; V. Vikhrov; I. Vilardi; C. Vogel; S. Wang; S. Yaschenko; H. Ye; Z. Ye; S. Yen; W. Yu; D. Zeiler; B. Zihlmann; P. Zupranski

doi:10.1007/JHEP06(2010)019

Exclusive leptoproduction of real photons on a longitudinally polarised hydrogen target

A. Airapetian, N. Akopov, Z. Akopov, E. C. Aschenauer, W. Augustyniak, R. Avakian, A. Avetissian, E. Avetisyan, B. Ball, S. Belostotski, N. Bianchi, H. P. Blok, H. Böttcher, A. Borissov, J. Bowles, I. Brodski, V. Bryzgalov, J. Burns, M. Capiluppi, G. P. CapitaniE. Cisbani, G. Ciullo, M. Contalbrigo, P. F. Dalpiaz, W. Deconinck, R. De Leo, L. De 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, M. Golembiovskaya, C. Hadjidakis, M. Hartig, D. Hasch, G. Hill, A. Hillenbrand, M. Hoek, Y. Holler, I. Hristova, Y. Imazu, A. Ivanilov, A. Izotov, H. E. Jackson, H. S. Jo, S. Joosten, R. Kaiser, G. Karyan, T. Keri, E. Kinney, A. Kisselev, N. Kobayashi, V. Korotkov, V. Kozlov, P. Kravchenko, V. G. Krivokhijine, L. Lagamba, R. Lamb, L. Lapikás, I. Lehmann, P. Lenisa, L. A. Linden-Levy, A. López Ruiz, W. Lorenzon, X. G. Lu, X. R. Lu, B. Q. Ma, D. Mahon, N. C.R. Makins, S. I. Manaenkov, L. Manfré, Y. Mao, B. Marianski, A. Martinez De La Ossa, H. Marukyan, C. A. Miller, Y. Miyachi, A. Movsisyan, V. Muccifora, M. Murray, A. Mussgiller, E. Nappi, Y. Naryshkin, A. Nass, M. Negodaev, W. D. Nowak, L. L. Pappalardo, R. Perez-Benito, N. Pickert, M. Raithel, P. E. Reimer, A. R. Reolon, C. Riedl, K. Rith, G. Rosner, A. Rostomyan, J. Rubin, D. Ryckbosch, Y. Salomatin, F. Sanftl, A. Schäfer, G. Schnell, K. P. Schüler, B. Seitz, T. A. Shibata, V. Shutov, M. Stancari, M. Statera, E. Steffens, J. J.M. Steijger, H. Stenzel, J. Stewart, F. Stinzing, S. Taroian, A. Terkulov, A. Trzcinski, M. Tytgat, A. Vandenbroucke, P. B. Van Der Nat, Y. Van Haarlem, C. Van Hulse, D. Veretennikov, V. Vikhrov, I. Vilardi, C. Vogel, S. Wang, S. Yaschenko, H. Ye, Z. Ye, S. Yen, W. Yu, D. Zeiler, B. Zihlmann, P. Zupranski

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Abstract

Polarisation asymmetries are measured for the hard exclusive leptoproduction of real photons from a longitudinally polarised hydrogen target. These asymmetries arise from the deeply virtual Compton scattering and Bethe-Heitler processes. From the data are extracted two asymmetries in the azimuthal distribution of produced real photons about the direction of the exchanged virtual photon: AUL with respect to the target polarisation and ALL with respect to the product of the beam and target polarisations. Results for both asymmetries are compared to the predictions from a generalised parton distribution model. The sin φ and cos(0φ) amplitudes observed respectively for the AUL and ALL asymmetries are compatible with the sizeable predictions from the model. Unexpectedly, a sin(2φ) modulation in the AUL asymmetry with a magnitude similar to that of the sin φ modulation is observed.

Original language	English
Article number	19
Journal	Journal of High Energy Physics
Volume	2010
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2010)019
State	Published - 2010

Keywords

Lepton-nucleon scattering

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10.1007/JHEP06(2010)019

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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., Bianchi, N., Blok, H. P., Böttcher, H., Borissov, A., Bowles, J., Brodski, I., Bryzgalov, V., Burns, J., Capiluppi, M., ... Zupranski, P. (2010). Exclusive leptoproduction of real photons on a longitudinally polarised hydrogen target. Journal of High Energy Physics, 2010(6), Article 19. https://doi.org/10.1007/JHEP06(2010)019

@article{144ab58c92ef424db238e92f81f57ed5,

title = "Exclusive leptoproduction of real photons on a longitudinally polarised hydrogen target",

abstract = "Polarisation asymmetries are measured for the hard exclusive leptoproduction of real photons from a longitudinally polarised hydrogen target. These asymmetries arise from the deeply virtual Compton scattering and Bethe-Heitler processes. From the data are extracted two asymmetries in the azimuthal distribution of produced real photons about the direction of the exchanged virtual photon: AUL with respect to the target polarisation and ALL with respect to the product of the beam and target polarisations. Results for both asymmetries are compared to the predictions from a generalised parton distribution model. The sin φ and cos(0φ) amplitudes observed respectively for the AUL and ALL asymmetries are compatible with the sizeable predictions from the model. Unexpectedly, a sin(2φ) modulation in the AUL asymmetry with a magnitude similar to that of the sin φ modulation is observed.",

keywords = "Lepton-nucleon scattering",

author = "A. Airapetian and N. Akopov and Z. Akopov and Aschenauer, \{E. C.\} and W. Augustyniak and R. Avakian and A. Avetissian and E. Avetisyan and B. Ball and S. Belostotski and N. Bianchi and Blok, \{H. P.\} and H. B{\"o}ttcher and A. Borissov and J. Bowles and I. Brodski and V. Bryzgalov and J. Burns and M. Capiluppi and Capitani, \{G. P.\} and E. Cisbani and G. Ciullo and M. Contalbrigo and Dalpiaz, \{P. F.\} and W. Deconinck and \{De Leo\}, R. and \{De Nardo\}, L. 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 M. Golembiovskaya and C. Hadjidakis and M. Hartig and D. Hasch and G. Hill and A. Hillenbrand and M. Hoek and Y. Holler and I. Hristova and Y. Imazu and A. Ivanilov and A. Izotov and Jackson, \{H. E.\} and Jo, \{H. S.\} and S. Joosten 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 Krivokhijine, \{V. G.\} and L. Lagamba and R. Lamb and L. Lapik{\'a}s and I. Lehmann and P. Lenisa and Linden-Levy, \{L. A.\} and \{L{\'o}pez Ruiz\}, A. and W. Lorenzon and Lu, \{X. G.\} and Lu, \{X. R.\} and Ma, \{B. Q.\} and D. Mahon and Makins, \{N. C.R.\} and Manaenkov, \{S. I.\} and L. Manfr{\'e} and Y. Mao and B. Marianski and \{De La Ossa\}, \{A. Martinez\} and H. Marukyan and Miller, \{C. A.\} 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 M. Negodaev and Nowak, \{W. D.\} and Pappalardo, \{L. L.\} and R. Perez-Benito and N. Pickert and M. Raithel and Reimer, \{P. E.\} and Reolon, \{A. R.\} 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 Sch{\"u}ler, \{K. P.\} and B. Seitz and Shibata, \{T. A.\} and V. Shutov and M. Stancari and M. Statera and E. Steffens and Steijger, \{J. J.M.\} and H. Stenzel and J. Stewart and F. Stinzing and S. Taroian and A. Terkulov and A. Trzcinski and M. Tytgat and A. Vandenbroucke and \{Van Der Nat\}, \{P. B.\} and \{Van Haarlem\}, Y. and \{Van Hulse\}, C. and D. Veretennikov and V. Vikhrov and I. Vilardi and C. Vogel and S. Wang and S. Yaschenko and H. Ye and Z. Ye and S. Yen and W. Yu and D. Zeiler and B. Zihlmann and P. Zupranski",

year = "2010",

doi = "10.1007/JHEP06(2010)019",

language = "English",

volume = "2010",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer Verlag",

number = "6",

}

Airapetian, A, Akopov, N, Akopov, Z, Aschenauer, EC, Augustyniak, W, Avakian, R, Avetissian, A, Avetisyan, E, Ball, B, Belostotski, S, Bianchi, N, Blok, HP, Böttcher, H, Borissov, A, Bowles, J, Brodski, I, Bryzgalov, V, Burns, J, Capiluppi, M, Capitani, GP, Cisbani, E, Ciullo, G, Contalbrigo, M, Dalpiaz, PF, Deconinck, W, De Leo, R, De Nardo, L, 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, Golembiovskaya, M, Hadjidakis, C, Hartig, M, Hasch, D, Hill, G, Hillenbrand, A, Hoek, M, Holler, Y, Hristova, I, Imazu, Y, Ivanilov, A, Izotov, A, Jackson, HE, Jo, HS, Joosten, S, Kaiser, R, Karyan, G, Keri, T, Kinney, E, Kisselev, A, Kobayashi, N, Korotkov, V, Kozlov, V, Kravchenko, P, Krivokhijine, VG, Lagamba, L, Lamb, R, Lapikás, L, Lehmann, I, Lenisa, P, Linden-Levy, LA, López Ruiz, A, Lorenzon, W, Lu, XG, Lu, XR, Ma, BQ, Mahon, D, Makins, NCR, Manaenkov, SI, Manfré, L, Mao, Y, Marianski, B, De La Ossa, AM, Marukyan, H, Miller, CA, Miyachi, Y, Movsisyan, A, Muccifora, V, Murray, M, Mussgiller, A, Nappi, E, Naryshkin, Y, Nass, A, Negodaev, M, Nowak, WD, Pappalardo, LL, Perez-Benito, R, Pickert, N, Raithel, M, Reimer, PE, Reolon, AR, Riedl, C, Rith, K, Rosner, G, Rostomyan, A, Rubin, J, Ryckbosch, D, Salomatin, Y, Sanftl, F, Schäfer, A, Schnell, G, Schüler, KP, Seitz, B, Shibata, TA, Shutov, V, Stancari, M, Statera, M, Steffens, E, Steijger, JJM, Stenzel, H, Stewart, J, Stinzing, F, Taroian, S, Terkulov, A, Trzcinski, A, Tytgat, M, Vandenbroucke, A, Van Der Nat, PB, Van Haarlem, Y, Van Hulse, C, Veretennikov, D, Vikhrov, V, Vilardi, I, Vogel, C, Wang, S, Yaschenko, S, Ye, H, Ye, Z, Yen, S, Yu, W, Zeiler, D, Zihlmann, B & Zupranski, P 2010, 'Exclusive leptoproduction of real photons on a longitudinally polarised hydrogen target', Journal of High Energy Physics, vol. 2010, no. 6, 19. https://doi.org/10.1007/JHEP06(2010)019

TY - JOUR

T1 - Exclusive leptoproduction of real photons on a longitudinally polarised 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 - Bianchi, N.

AU - Blok, H. P.

AU - Böttcher, H.

AU - Borissov, A.

AU - Bowles, J.

AU - Brodski, I.

AU - Bryzgalov, V.

AU - Burns, J.

AU - Capiluppi, M.

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 - De Nardo, L.

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 - Golembiovskaya, M.

AU - Hadjidakis, C.

AU - Hartig, M.

AU - Hasch, D.

AU - Hill, G.

AU - Hillenbrand, A.

AU - Hoek, M.

AU - Holler, Y.

AU - Hristova, I.

AU - Imazu, Y.

AU - Ivanilov, A.

AU - Izotov, A.

AU - Jackson, H. E.

AU - Jo, H. S.

AU - Joosten, S.

AU - Kaiser, R.

AU - Karyan, G.

AU - Keri, T.

AU - Kinney, E.

AU - Kisselev, A.

AU - Kobayashi, N.

AU - Korotkov, V.

AU - Kozlov, V.

AU - Kravchenko, P.

AU - Krivokhijine, V. G.

AU - Lagamba, L.

AU - Lamb, R.

AU - Lapikás, L.

AU - Lehmann, I.

AU - Lenisa, P.

AU - Linden-Levy, L. A.

AU - López Ruiz, A.

AU - Lorenzon, W.

AU - Lu, X. G.

AU - Lu, X. R.

AU - Ma, B. Q.

AU - Mahon, D.

AU - Makins, N. C.R.

AU - Manaenkov, S. I.

AU - Manfré, L.

AU - Mao, Y.

AU - Marianski, B.

AU - De La Ossa, A. Martinez

AU - Marukyan, H.

AU - Miller, C. A.

AU - Miyachi, Y.

AU - Movsisyan, A.

AU - Muccifora, V.

AU - Murray, M.

AU - Mussgiller, A.

AU - Nappi, E.

AU - Naryshkin, Y.

AU - Nass, A.

AU - Negodaev, M.

AU - Nowak, W. D.

AU - Pappalardo, L. L.

AU - Perez-Benito, R.

AU - Pickert, N.

AU - Raithel, M.

AU - Reimer, P. E.

AU - Reolon, A. R.

AU - Riedl, C.

AU - Rith, K.

AU - Rosner, G.

AU - Rostomyan, A.

AU - Rubin, J.

AU - Ryckbosch, D.

AU - Salomatin, Y.

AU - Sanftl, F.

AU - Schäfer, A.

AU - Schnell, G.

AU - Schüler, K. P.

AU - Seitz, B.

AU - Shibata, T. A.

AU - Shutov, V.

AU - Stancari, M.

AU - Statera, M.

AU - Steffens, E.

AU - Steijger, J. J.M.

AU - Stenzel, H.

AU - Stewart, J.

AU - Stinzing, F.

AU - Taroian, S.

AU - Terkulov, A.

AU - Trzcinski, A.

AU - Tytgat, M.

AU - Vandenbroucke, A.

AU - Van Der Nat, P. B.

AU - Van Haarlem, Y.

AU - Van Hulse, C.

AU - Veretennikov, D.

AU - Vikhrov, V.

AU - Vilardi, I.

AU - Vogel, C.

AU - Wang, S.

AU - Yaschenko, S.

AU - Ye, H.

AU - Ye, Z.

AU - Yen, S.

AU - Yu, W.

AU - Zeiler, D.

AU - Zihlmann, B.

AU - Zupranski, P.

PY - 2010

Y1 - 2010

N2 - Polarisation asymmetries are measured for the hard exclusive leptoproduction of real photons from a longitudinally polarised hydrogen target. These asymmetries arise from the deeply virtual Compton scattering and Bethe-Heitler processes. From the data are extracted two asymmetries in the azimuthal distribution of produced real photons about the direction of the exchanged virtual photon: AUL with respect to the target polarisation and ALL with respect to the product of the beam and target polarisations. Results for both asymmetries are compared to the predictions from a generalised parton distribution model. The sin φ and cos(0φ) amplitudes observed respectively for the AUL and ALL asymmetries are compatible with the sizeable predictions from the model. Unexpectedly, a sin(2φ) modulation in the AUL asymmetry with a magnitude similar to that of the sin φ modulation is observed.

AB - Polarisation asymmetries are measured for the hard exclusive leptoproduction of real photons from a longitudinally polarised hydrogen target. These asymmetries arise from the deeply virtual Compton scattering and Bethe-Heitler processes. From the data are extracted two asymmetries in the azimuthal distribution of produced real photons about the direction of the exchanged virtual photon: AUL with respect to the target polarisation and ALL with respect to the product of the beam and target polarisations. Results for both asymmetries are compared to the predictions from a generalised parton distribution model. The sin φ and cos(0φ) amplitudes observed respectively for the AUL and ALL asymmetries are compatible with the sizeable predictions from the model. Unexpectedly, a sin(2φ) modulation in the AUL asymmetry with a magnitude similar to that of the sin φ modulation is observed.

KW - Lepton-nucleon scattering

UR - https://www.scopus.com/pages/publications/84856397342

U2 - 10.1007/JHEP06(2010)019

DO - 10.1007/JHEP06(2010)019

M3 - Article

AN - SCOPUS:84856397342

SN - 1029-8479

VL - 2010

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 6

M1 - 19

ER -

Exclusive leptoproduction of real photons on a longitudinally polarised hydrogen target

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