Abstract
Double-spin asymmetries in exclusive electroproduction of real photons from a transversely polarized hydrogen target are measured with respect to the product of target polarization with beam helicity and beam charge, and with respect to the product of target polarization with beam helicity alone. The asymmetries arise from the deeply virtual Compton scattering process and its interference with the Bethe-Heitler process. They are related to the real part of the same combination of Compton form factors as that determining the previously published transverse target single-spin asymmetries through the imaginary part. The results for the double-spin asymmetries are found to be compatible with zero within the uncertainties of the measurement, and are not incompatible with the predictions of the only available GPD-based calculation.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 15-23 |
| Number of pages | 9 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 704 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - Oct 5 2011 |
| Externally published | Yes |
Keywords
- DVCS
- GPDs
- HERMES experiments
- Transversely polarized hydrogen target
ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Measurement of double-spin asymmetries associated with deeply virtual Compton scattering on a transversely polarized hydrogen target. / Airapetian, A.; Akopov, N.; Akopov, Z.; Aschenauer, E. C.; Augustyniak, W.; Avakian, R.; Avetissian, A.; Avetisyan, E.; Belostotski, S.; Bianchi, N.; Blok, H. P.; Borissov, A.; Bowles, J.; Brodski, I.; Bryzgalov, V.; Burns, J.; Capiluppi, M.; Capitani, G. P.; Cisbani, E.; Ciullo, G.; Contalbrigo, M.; Dalpiaz, P. F.; Deconinck, W.; De Leo, R.; De Nardo, L.; De Sanctis, E.; 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.; Hartig, M.; Hasch, D.; Hoek, M.; Holler, Y.; Hristova, I.; Imazu, Y.; Ivanilov, A.; Jackson, H. E.; Jo, H. S.; Joosten, S.; Kaiser, R.; Karyan, G.; Keri, T.; Kinney, E.; Kisselev, A.; Korotkov, V.; Kozlov, V.; Kravchenko, P.; Krivokhijine, V. G.; Lagamba, L.; Lapikás, L.; Lehmann, I.; Lenisa, P.; López Ruiz, A.; Lorenzon, W.; Lu, X. G.; Lu, X. R.; Ma, B. Q.; Mahon, D.; Makins, N. C.R.; Manaenkov, S. I.; Manfré, L.; Mao, Y.; Marianski, B.; Martinez de la Ossa, A.; Marukyan, H.; Miller, C. A.; Miyachi, Y.; Movsisyan, A.; Murray, M.; Mussgiller, A.; Nappi, E.; Naryshkin, Y.; Nass, A.; Negodaev, M.; Nowak, W. D.; Pappalardo, L. L.; Perez-Benito, R.; Raithel, M.; Reimer, P. E.; Reolon, A. R.; Riedl, C.; Rith, K.; Rosner, G.; Rostomyan, A.; Rubin, J.; Ryckbosch, D.; Salomatin, Y.; Schäfer, A.; Schnell, G.; Schüler, K. P.; Seitz, B.; Shibata, T. A.; Shutov, V.; Stancari, M.; Statera, M.; Steffens, E.; Steijger, J. J.M.; Stinzing, F.; Taroian, S.; Terkulov, A.; Truty, R.; Trzcinski, A.; Tytgat, M.; Van Haarlem, Y.; Van Hulse, C.; Veretennikov, D.; Vikhrov, V.; Vilardi, I.; Wang, S.; Yaschenko, S.; Ye, Z.; Yen, S.; Zagrebelnyy, V.; Zeiler, D.; Zihlmann, B.; Zupranski, P.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 704, No. 1-2, 05.10.2011, p. 15-23.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Measurement of double-spin asymmetries associated with deeply virtual Compton scattering on a transversely polarized 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 - Belostotski, S.
AU - Bianchi, N.
AU - Blok, H. P.
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 - 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 - Hartig, M.
AU - Hasch, D.
AU - Hoek, M.
AU - Holler, Y.
AU - Hristova, I.
AU - Imazu, Y.
AU - Ivanilov, 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 - Korotkov, V.
AU - Kozlov, V.
AU - Kravchenko, P.
AU - Krivokhijine, V. G.
AU - Lagamba, L.
AU - Lapikás, L.
AU - Lehmann, I.
AU - Lenisa, P.
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 - Martinez de la Ossa, A.
AU - Marukyan, H.
AU - Miller, C. A.
AU - Miyachi, Y.
AU - Movsisyan, A.
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 - 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 - 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 - Stinzing, F.
AU - Taroian, S.
AU - Terkulov, A.
AU - Truty, R.
AU - Trzcinski, A.
AU - Tytgat, M.
AU - Van Haarlem, Y.
AU - Van Hulse, C.
AU - Veretennikov, D.
AU - Vikhrov, V.
AU - Vilardi, I.
AU - Wang, S.
AU - Yaschenko, S.
AU - Ye, Z.
AU - Yen, S.
AU - Zagrebelnyy, V.
AU - Zeiler, D.
AU - Zihlmann, B.
AU - Zupranski, P.
N1 - Funding Information: We gratefully acknowledge the DESY management for its support and the staff at DESY and the collaborating institutions for their significant effort. This work was supported by the Ministry of Economy and the Ministry of Education and Science of Armenia ; the FWO-Flanders and IWT , Belgium; the Natural Sciences and Engineering Research Council of Canada ; the National Natural Science Foundation of China ; the Alexander von Humboldt Stiftung , the German Bundesministerium für Bildung und Forschung (BMBF) , and the Deutsche Forschungsgemeinschaft (DFG) ; the Italian Istituto Nazionale di Fisica Nucleare (INFN) ; the MEXT , JSPS , and G-COE of Japan ; the Dutch Foundation for Fundamenteel Onderzoek der Materie (FOM) ; the Russian Academy of Science and the Russian Federal Agency for Science and Innovations ; the U.K. Engineering and Physical Sciences Research Council , the Science and Technology Facilities Council , and the Scottish Universities Physics Alliance ; the U.S. Department of Energy (DOE) and the National Science Foundation (NSF) ; the Basque Foundation for Science (IKERBASQUE) ; and the European Community Research Infrastructure Integrating Activity under the FP7 “Study of strongly interacting matter (HadronPhysics2, Grant Agreement number 227431)”.
PY - 2011/10/5
Y1 - 2011/10/5
N2 - Double-spin asymmetries in exclusive electroproduction of real photons from a transversely polarized hydrogen target are measured with respect to the product of target polarization with beam helicity and beam charge, and with respect to the product of target polarization with beam helicity alone. The asymmetries arise from the deeply virtual Compton scattering process and its interference with the Bethe-Heitler process. They are related to the real part of the same combination of Compton form factors as that determining the previously published transverse target single-spin asymmetries through the imaginary part. The results for the double-spin asymmetries are found to be compatible with zero within the uncertainties of the measurement, and are not incompatible with the predictions of the only available GPD-based calculation.
AB - Double-spin asymmetries in exclusive electroproduction of real photons from a transversely polarized hydrogen target are measured with respect to the product of target polarization with beam helicity and beam charge, and with respect to the product of target polarization with beam helicity alone. The asymmetries arise from the deeply virtual Compton scattering process and its interference with the Bethe-Heitler process. They are related to the real part of the same combination of Compton form factors as that determining the previously published transverse target single-spin asymmetries through the imaginary part. The results for the double-spin asymmetries are found to be compatible with zero within the uncertainties of the measurement, and are not incompatible with the predictions of the only available GPD-based calculation.
KW - DVCS
KW - GPDs
KW - HERMES experiments
KW - Transversely polarized hydrogen target
UR - http://www.scopus.com/inward/record.url?scp=80052964372&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80052964372&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2011.08.067
DO - 10.1016/j.physletb.2011.08.067
M3 - Article
AN - SCOPUS:80052964372
VL - 704
SP - 15
EP - 23
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 1-2
ER -