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Ratios of helicity amplitudes for exclusive $$\rho ^0$$ ρ 0 electroproduction on transversely polarized protons

Airapetian, A., Akopov, N., Akopov, Z., Aschenauer, E. C., Augustyniak, W., Belostotski, S., Blok, H. P., Borissov, A., Bryzgalov, V., Capitani, G. P., Ciullo, G., Contalbrigo, M., Deconinck, W. , De Leo, R., De Sanctis, E., Düren, M., Elbakian, G., Ellinghaus, F. , Felawka, L., Frullani, S., Garibaldi, F., Gavrilov, G., Gharibyan, V., Goloskokov, S. V., Holler, Y., Ivanilov, A., Jackson, H. E., Joosten, S., Kaiser, R., Karyan, G., Kisselev, A., Korotkov, V., Kozlov, V., Kravchenko, P., Kroll, P., Lagamba, L., Lapikás, L., Lehmann, I., Lenisa, P., Lorenzon, W., Manaenkov, S. I., Marianski, B., Marukyan, H., Miyachi, Y., Movsisyan, A., Muccifora, V., Nass, A., Nowak, W.-D., Pappalardo, L. L., Petrosyan, A., Reimer, P. E. , Reolon, A. R., Riedl, C., Rith, K., Rosner, G., Rostomyan, A., Ryckbosch, D., Salomatin, Y., Schäfer, A., Schnell, G., Seitz, B., Shibata, T.-A., Shutov, V., Statera, M., Terkulov, A. , Truty, R., Trzcinski, A., Tytgat, M. , Van Haarlem, Y., Van Hulse, C., Veretennikov, D., Vikhrov, V., Vilardi, I., Yaschenko, S., Zihlmann, B. and Zupranski, P. (2017) Ratios of helicity amplitudes for exclusive $$\rho ^0$$ ρ 0 electroproduction on transversely polarized protons. The European Physical Journal C 77 (6).

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Other URL: http://doi.org/10.1140/epjc/s10052-017-4899-1

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Abstract

Exclusive rho(0)-meson electroproduction is studied by the HERMES experiment, using the 27.6 GeV longitudinally polarized electron/positron beam of HERA and a transversely polarized hydrogen target, in the kinematic region 1.0 GeV2 < Q(2) < 7.0GeV(2), 3.0GeV< W < 6.3 GeV, and -t' < 0.4 GeV2. Using an unbinned maximum-likelihood method, 25 parameters are extracted. These determine the real and ...

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Item type:Article
Date:2017
Institutions:Physics > Institute of Theroretical Physics
Identification Number:
ValueType
10.1140/epjc/s10052-017-4899-1DOI
Keywords:VECTOR-MESON PRODUCTION; GENERALIZED PARTON DISTRIBUTIONS; CROSS-SECTION; ELASTIC ELECTROPRODUCTION; J/PSI MESONS; HERA; SCATTERING; SPIN; LEPTOPRODUCTION; HYDROGEN;
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:38896
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