Journalartikel
Autorenliste: Airapetian, A.; Akopov, N.; Akopov, Z.; Aschenauer, E. C.; Augustyniak, W.; Avakian, R.; Bacchetta, A.; Belostotski, S.; Bryzgalov, V; Capitani, G. P.; Cisbani, E.; Ciullo, G.; Contalbrigo, M.; Deconinck, W.; De Leo, R.; De Sanctis, E.; Diefenthaler, M.; Di Nezza, P.; Dueren, M.; Elbakian, G.; Ellinghaus, F.; Fantoni, A.; Felawka, L.; Gavrilov, G.; Gharibyan, V; Hasch, D.; Holler, Y.; Ivanilov, A.; Jackson, H. E.; Joosten, S.; Kaiser, R.; Karyan, G.; Kinney, E.; Kisselev, A.; Kozlov, V; Kravchenko, P.; Lagamba, L.; Lapikas, L.; Lehmann, I; Lenisa, P.; Lorenzon, W.; Manaenkov, S., I; Marianski, B.; Marukyan, H.; Miyachi, Y.; Movsisyan, A.; Muccifora, V; Naryshkin, Y.; Nass, A.; Nazaryan, G.; Nowak, W-D; Pappalardo, L. L.; Reimer, P. E.; Reolon, A. R.; Riedl, C.; Rith, K.; Rosner, G.; Rostomyan, A.; Rubin, J.; Ryckbosch, D.; Schaefer, A.; Schnell, G.; Seitz, B.; Shibata, T-A; Shutov, V; Statera, M.; Terkulov, A.; Tytgat, M.; Van Haarlem, Y.; Van Hulse, C.; Veretennikov, D.; Vilardi, I; Yaschenko, S.; Zeiler, D.; Zihlmann, B.; Zupranski, P.
Jahr der Veröffentlichung: 2020
Zeitschrift: Journal of High Energy Physics
Heftnummer: 12
ISSN: 1029-8479
Open Access Status: Gold
DOI Link: https://doi.org/10.1007/JHEP12(2020)010
Verlag: Springer
Abstract:
A comprehensive set of azimuthal single-spin and double-spin asymmetries in semi-inclusive leptoproduction of pions, charged kaons, protons, and antiprotons from transversely polarized protons is presented. These asymmetries include the previously published HERMES results on Collins and Sivers asymmetries, the analysis of which has been extended to include protons and antiprotons and also to an extraction in a three-dimensional kinematic binning and enlarged phase space. They are complemented by corresponding results for the remaining four single-spin and four double-spin asymmetries allowed in the one-photon-exchange approximation of the semi-inclusive deep-inelastic scattering process for target-polarization orientation perpendicular to the direction of the incoming lepton beam. Among those results, significant non-vanishing cos (phi-phi(S)) modulations provide evidence for a sizable worm-gear (II) distribution, g(1T)(q) (x, p(T)(2)). Most of the other modulations are found to be consistent with zero with the notable exception of large sin (phi(S)) modulations for charged pions and K+.
Zitierstile
Harvard-Zitierstil: Airapetian, A., Akopov, N., Akopov, Z., Aschenauer, E., Augustyniak, W., Avakian, R., et al. (2020) Azimuthal single- and double-spin asymmetries in semi-inclusive deep-inelastic lepton scattering by transversely polarized protons, Journal of High Energy Physics(12), Article 010. https://doi.org/10.1007/JHEP12(2020)010
APA-Zitierstil: Airapetian, A., Akopov, N., Akopov, Z., Aschenauer, E., Augustyniak, W., Avakian, R., Bacchetta, A., Belostotski, S., Bryzgalov, V., Capitani, G., Cisbani, E., Ciullo, G., Contalbrigo, M., Deconinck, W., De Leo, R., De Sanctis, E., Diefenthaler, M., Di Nezza, P., Dueren, M., ...Zupranski, P. (2020). Azimuthal single- and double-spin asymmetries in semi-inclusive deep-inelastic lepton scattering by transversely polarized protons. Journal of High Energy Physics(12), Article 010. https://doi.org/10.1007/JHEP12(2020)010
Schlagwörter
COLLINS; DRELL-YAN; ELECTROPRODUCTION; FINAL-STATE INTERACTIONS; Fixed target experiments; PARTON DISTRIBUTIONS; PIONS; QCD; QUARK POLARIZATION; SIDIS; SIVERS ASYMMETRIES
