Spin density matrix elements in exclusive ρ0 electroproduction on 1H and 2H targets at 27.5 GeV beam energy

Spin Density Matrix Elements (SDMEs) describing the angular distribution of exclusive ρ 0 electroproduction and decay are determined in the HERMES experiment with 27.6 GeV beam energy and unpolarized hydrogen and deuterium targets. Eight (fifteen) SDMEs that are related (unrelated) to the longitudin...

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Veröffentlicht in:	The European physical journal. C, Particles and fields Particles and fields, 2009, Vol.62 (4), p.659-695
Hauptverfasser:	Airapetian, A., Akopov, N., Akopov, Z., Andrus, A., Augustyniak, W., Avakian, R., Belostotski, S., Böttcher, H., Bonomo, C., Capiluppi, M., Ciullo, G., Contalbrigo, M., Dalpiaz, P. F., Demey, M., De Nardo, L., De Sanctis, E., Di Nezza, P., Düren, M., Fantoni, A., Funel, A., Gabbert, D., Gapienko, G., Garibaldi, F., Gavrilov, G., Gharibyan, V., Giordano, F., Gliske, S., Grebeniouk, O., Gregor, I. M., Hadjidakis, C., Hasegawa, T., Hill, G., Hillenbrand, A., Hoek, M., Iarygin, G., Imazu, Y., Ivanilov, A., Izotov, A., Jackson, H. E., Jgoun, A., Kinney, E., Korotkov, V., Kravchenko, P., Lagamba, L., Lehmann, I., Lenisa, P., Liebing, P., Lorenzon, W., Lu, S., Lu, X.-R., Ma, B.-Q., Maiheu, B., Makins, N. C. R., Manaenkov, S. I., Marianski, B., Marukyan, H., Mexner, V., Miyachi, Y., Muccifora, V., Murray, M., Mussgiller, A., Naryshkin, Y., Nass, A., Nowak, W.-D., Osborne, A., Pappalardo, L. L., Reggiani, D., Reischl, A., Reolon, A. R., Rosner, G., Rostomyan, A., Rubacek, L., Ryckbosch, D., Schäfer, A., Schüler, K. P., Seitz, B., Shibata, T.-A., Shutov, V., Statera, M., Stenzel, H., Streit, J., Tait, P., Taroian, S., Tchuiko, B., Trzcinski, A., Tytgat, M., van der Steenhoven, G., Van Haarlem, Y., Van Hulse, C., Varanda, M., Veretennikov, D., Vilardi, I., Vogel, C., Wang, S., Yaschenko, S., Ye, Y., Yen, S., Yu, W., Zihlmann, B., Zupranski, P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Astrophysics and Cosmology Elementary Particles Exact sciences and technology Hadrons Heavy Ions Measurement Science and Instrumentation Nuclear Energy Nuclear Physics Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Regular Article - Experimental Physics String Theory The physics of elementary particles and fields
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Beschreibung
Zusammenfassung:	Spin Density Matrix Elements (SDMEs) describing the angular distribution of exclusive ρ 0 electroproduction and decay are determined in the HERMES experiment with 27.6 GeV beam energy and unpolarized hydrogen and deuterium targets. Eight (fifteen) SDMEs that are related (unrelated) to the longitudinal polarization of the beam are extracted in the kinematic region 1< Q 2
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-009-1082-3