Inclusive measurements of inelastic electron and positron scattering from unpolarized hydrogen and deuterium targets

Results of inclusive measurements of inelastic electron and positron scattering from unpolarized protons and deuterons at the HERMES experiment are presented. The structure functions F 2 p and F 2 d are determined using a parameterization of existing data for the longitudinal-to-transverse virtual-p...

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Veröffentlicht in:	J. High Energy Phys 2011-05, Vol.2011 (5), Article 126
Hauptverfasser:	Akopov, N., Akopov, Z., Augustyniak, W., Avetissian, A., Avetisyan, E., Belostotski, S., Bianchi, N., Blok, H. P., Borissov, A., Bowles, J., Bryzgalov, V., Burns, J., Capitani, G. P., Cisbani, E., Ciullo, G., Contalbrigo, M., Deconinck, W., De Leo, R., De Nardo, L., De Sanctis, E., Di Nezza, P., Düren, M., Ehrenfried, M., Elbakian, G., Fabbri, R., Felawka, L., Gapienko, G., Garibaldi, F., Gharibyan, V., Giordano, F., Gliske, S., Golembiovskaya, M., Hadjidakis, C., Hasch, D., Hillenbrand, A., Hoek, M., Holler, Y., Imazu, Y., Ivanilov, A., Jackson, H. E., Joosten, S., Keri, T., Kinney, E., Kisselev, A., Kozlov, V., Lagamba, L., Lapikás, L., Lehmann, I., Linden-Levy, L. A., Ruiz, A. López, Lorenzon, W., Ma, B.-Q., Mahon, D., Makins, N. C. R., Manfré, L., Mao, Y., Marianski, B., Marukyan, H., Miyachi, Y., Movsisyan, A., Muccifora, V., Murray, M., Nappi, E., Nass, A., Negodaev, M., Nowak, W.-D., Pappalardo, L. L., Perez-Benito, R., Pickert, N., Raithel, M., Reimer, P. E., Reolon, A. R., Riedl, C., Rith, K., Rosner, G., Rubin, J., Salomatin, Y., Sanftl, F., Schäfer, A., Schnell, G., Shibata, T.-A., Shutov, V., Stancari, M., Statera, M., Steffens, E., Steijger, J. J. M., Stenzel, H., Stinzing, F., Taroian, S., Trzcinski, A., Tytgat, M., Veretennikov, D., Vilardi, I., Yaschenko, S., Ye, H., Ye, Z., Yu, W., Zeiler, D., Zihlmann, B., Zupranski, P.
Format:	Artikel
Sprache:	eng
Schlagworte:	08 HYDROGEN ABSORPTION Absorption cross sections Classical and Quantum Gravitation CROSS SECTIONS Deuterium DEUTERIUM TARGET DEUTERONS ELECTRONS Elementary Particles FUNCTIONALS High energy physics HYDROGEN Inelastic scattering Nucleons Parameterization Photon absorption Photons Physics Physics and Astronomy Positron scattering POSITRONS PROTONS QUANTUM CHROMODYNAMICS Quantum Field Theories Quantum Field Theory Quantum Physics Relativity Theory SCATTERING String Theory STRUCTURE FUNCTIONS
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Beschreibung
Zusammenfassung:	Results of inclusive measurements of inelastic electron and positron scattering from unpolarized protons and deuterons at the HERMES experiment are presented. The structure functions F 2 p and F 2 d are determined using a parameterization of existing data for the longitudinal-to-transverse virtual-photon absorption cross-section ratio. The HERMES results provide data in the ranges 0.006 ≤ x ≤ 0.9 and 0.1 GeV 2 ≤ Q 2 ≤ 20 GeV 2 , covering the transition region between the perturbative and the non-perturbative regimes of QCD in a so-far largely unexplored kinematic region. They are in agreement with existing world data in the region of overlap. The measured cross sections are used, in combination with data from other experiments, to perform fits to the photon-nucleon cross section using the functional form of the ALLM model. The deuteron-to-proton cross-section ratio is also determined.
ISSN:	1029-8479 1029-8479
DOI:	10.1007/JHEP05(2011)126