Longitudinal double-spin asymmetries in semi-inclusive deep-inelastic scattering of electrons and positrons by protons and deuterons
| Autor: | Airapetian, A., Akopov, N., Bryzgalov, V., Capitani, G. P., Cisbani, E., Ciullo, G., Contalbrigo, M., Dalpiaz, P. F., Deconinck, W., De Leo, R., De Nardo, L., De Sanctis, E., Akopov, Z., Diefenthaler, M., Di Nezza, P., Düren, M., Elbakian, G., Ellinghaus, F., Fantoni, A., Felawka, L., Frullani, S., Gavrilov, G., Gharibyan, V., Aschenauer, E. C., Giordano, F., Gliske, S., Hasch, D., Holler, Y., Ivanilov, A., Jackson, H. E., Joosten, S., Kaiser, R., Karyan, G., Keri, T., Augustyniak, W., Kinney, E., Kisselev, A., Korotkov, V., Kozlov, V., Kravchenko, P., Krivokhijine, V. G., Lagamba, L., Lapikás, L., Lehmann, I., Lorenzon, W., Avakian, R., Ma, B.-Q., Mahon, D., Manaenkov, S. I., Mao, Y., Marianski, B., Marukyan, H., Miyachi, Y., Movsisyan, A., Muccifora, V., Mussgiller, A., Avetissian, A., Naryshkin, Y., Nass, A., Nazaryan, G., Nowak, W.-D., Pappalardo, L. L., Perez-Benito, R., Petrosyan, Anush, Reimer, P. E., Reolon, A. R., Riedl, C., Belostotski, S., Rith, K., Rosner, G., Rostomyan, A., Rubin, J., Ryckbosch, D., Salomatin, Y., Schnell, G., Seitz, B., Shibata, T.-A., Statera, M., Blok, H. P., Steffens, E., Steijger, J. J. M., Taroian, S., Terkulov, A., Truty, R., Trzcinski, A., Tytgat, M., van der Nat, P. B., Van Haarlem, Y., Van Hulse, C., Borissov, A., Veretennikov, D., Vikhrov, V., Vilardi, I., Vogel, Christian, Wang, S., Yaschenko, S., Zihlmann, B., Zupranski, P., HERMES Collaboration |
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| Přispěvatelé: | Student Lab and Education |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Proton
charged-lepton interactions with hadrons media_common.quotation_subject Particle interactions HELICITY Hadron Nuclear Theory Socio-culturale FOS: Physical sciences Strong interaction Polarization in interactions & 01 natural sciences 7. Clean energy Asymmetry High Energy Physics - Experiment Nuclear physics High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology (hep-ph) Pion Strong interaction Particle interactions Deep inelastic scattering Photon & charged-lepton interactions with hadrons Polarization in interactions & scattering Quantum chromodynamics 0103 physical sciences DISTRIBUTIONS ddc:530 SDG 7 - Affordable and Clean Energy valence 010306 general physics Nuclear Experiment media_common Physics 010308 nuclear & particles physics Scattering polarized quark distributions scattering nucleon electroproduction Deep inelastic scattering Helicity Photon & High Energy Physics - Phenomenology Physics and Astronomy helicity distributions High Energy Physics::Experiment Nucleon Quantum chromodynamics azimuthal dependence |
| Zdroj: | Physical Review D, 99(11):112001. American Physical Society Addi. Archivo Digital para la Docencia y la Investigación instname (The HERMES Collaboration) 2019, ' Longitudinal double-spin asymmetries in semi-inclusive deep-inelastic scattering of electrons and positrons by protons and deuterons ', Physical Review D, vol. 99, no. 11, 112001 . https://doi.org/10.1103/PhysRevD.99.112001 Physical review / D 99(11), 112001 (2019). doi:10.1103/PhysRevD.99.112001 Physical Review PHYSICAL REVIEW D |
| ISSN: | 2470-0029 2470-0010 |
| DOI: | 10.3204/PUBDB-2018-03832 |
| Popis: | A comprehensive collection of results on longitudinal double-spin asymmetries is presented for charged pions and kaons produced in semi-inclusive deep-inelastic scattering of electrons and positrons on the proton and deuteron, based on the full HERMES data set. The dependence of the asymmetries on hadron transverse momentum and azimuthal angle extends the sensitivity to the flavor structure of the nucleon beyond the distribution functions accessible in the collinear framework. No strong dependence on those variables is observed. In addition, the hadron charge-difference asymmetry is presented, which under certain model assumptions provides access to the helicity distributions of valence quarks. We gratefully acknowledge the DESY management for its support, the staff at DESY and the collaborating institutions for their significant effort. This work was supported by the State Committee of Science of the Republic of Armenia, Grant No. 18T-1C180; 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 fur 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 Basque Foundation for Science (IKERBASQUE), the Basque Government, Grant No. IT956-16, and MINECO (Juan de la Cierva), Spain; the U.K. Engineering and Physical Sciences Research Council, the Science and Technology Facilities Council, and the Scottish Universities Physics Alliance; as well as the U.S. Department of Energy (DOE) and the National Science Foundation (NSF). |
| Databáze: | OpenAIRE |
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