Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target -: art. no. 012002 - Forschungsportal der Justus-Liebig-Universität Gießen:

Journalartikel

Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target -: art. no. 012002

Autorenliste: Airapetian, A; Akopov, N; Akopov, Z; Amarian, M; Andrus, A; Aschenauer, EC; Augustyniak, W; Avakian, R; Avetissian, A; Avetissian, E; Bacchetta, A; Bailey, P; Balin, D; Beckmann, M; Belostotski, S; Bianchi, N; Blok, HP; Böttcher, H; Borissov, A; Borysenko, A; Bouwhuis, M; Brüll, A; Bryzgalov, V; Capitani, GP; Cappiluppi, M; Chen, T; Ciullo, G; Contalbrigo, M; Dalpiaz, PF; De Leo, R; Demey, M; De Nardo, L; De Sanctis, E; Devitsin, E; Di Nezza, P; Düren, M; Ehrenfried, M; Elalaoui-Moulay, A; Elbakian, G; Ellinghaus, F; Elschenbroich, U; Fabbri, R; Fantoni, A; Fechtchenko, A; Felawka, L; Frullani, S; Gapienko, G; Gapienko, V; Garibaldi, F; Garrow, K; Gavrilov, G; Gharibyan, V; Grebeniouk, O; Gregor, IM; Hadjidakis, C; Hafidi, K; Hartig, M; Hasch, D; Henoch, M; Hesselink, WHA; Hillenbrand, A; Hoek, M; Holler, Y; Hommez, B; Hristova, I; Iarygin, G; Ilyichev, A; Ivanilov, A; Izotov, A; Jackson, HE; Jgoun, A; Kaiser, R; Kinney, E; Kisselev, A; Kobayashi, T; Kopytin, M; Korotkov, V; Kozlov, V; Krauss, B; Krivokhijine, VG; Lagamba, L; Lapikás, L; Laziev, A; Lenisa, P; Liebing, P; Linden-Levy, LA; Lorenzon, W; Lu, H; Lu, J; Lu, S; Ma, BQ; Maiheu, B; Makins, NCR; Mao, Y; Marianski, B; Marukyan, H; Masoli, F; Mexner, V; Meyners, N; Michler, T; Mikloukho, O; Miller, CA; Miyachi, Y; Muccifora, V; Nagaitsev, A; Nappi, E; Naryshkin, Y; Nass, A; Negodaev, M; Nowak, WD; Oganessyan, K; Ohsuga, H; Osborne, A; Pickert, N; Potterveld, DH; Raithel, M; Reggiani, D; Reimer, PE; Reischl, A; Reolon, AR; Riedl, C; Rith, K; Rosner, G; Rostomyan, A; Rubacek, L; Rubin, J; Ryckbosch, D; Salomatin, Y; Sanjiev, I; Savin, I; Schäfer, A; Schill, C; Schnell, G; Schüler, KP; Seele, J; Seidl, R; Seitz, B; Shanidze, R; Shearer, C; Shibata, TA; Shutov, V; Sinram, K; Sommer, W; Stancari, M; Statera, M; Steffens, E; Steijger, JJM; Stenzel, H; Stewart, J; Stinzing, F; Tait, P; Tanaka, H; Taroian, S; Tchuiko, B; Terkulov, A; Trzcinski, A; Tytgat, M; Vandenbroucke, A; van der Nat, PB; van der Steenhoven, G; van Haarlem, Y; Vetterli, MC; Vikhrov, V; Vincter, MG; Vogel, C; Volmer, J; Wang, S; Wendland, J; Wilbert, J; Smit, GY; Ye, Y; Ye, Z; Yen, S; Zihlmann, B; Zupranski, P

Jahr der Veröffentlichung: 2005

Zeitschrift: Physical Review Letters

Bandnummer: 94

Heftnummer: 1

ISSN: 0031-9007

eISSN: 1079-7114

DOI Link: https://doi.org/10.1103/PhysRevLett.94.012002

Verlag: American Physical Society

Abstract:
Single-spin asymmetries for semi-inclusive electroproduction of charged pions in deep-inelastic scattering of positrons are measured for the first time with transverse target polarization. The asymmetry depends on the azimuthal angles of both the pion (phi) and the target spin axis (phi(S)) about the virtual-photon direction and relative to the lepton scattering plane. The extracted Fourier component (pi)(UT) is a signal of the previously unmeasured quark transversity distribution, in conjunction with the Collins fragmentation function, also unknown. The component (pi)(UT) arises from a correlation between the transverse polarization of the target nucleon and the intrinsic transverse momentum of quarks, as represented by the previously unmeasured Sivers distribution function. Evidence for both signals is observed, but the Sivers asymmetry may be affected by exclusive vector meson production.

Zitierstile

Harvard-Zitierstil: Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Andrus, A., Aschenauer, E., et al. (2005) Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target -: art. no. 012002, Physical Review Letters, 94(1), Article 012002. https://doi.org/10.1103/PhysRevLett.94.012002

APA-Zitierstil: Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Andrus, A., Aschenauer, E., Augustyniak, W., Avakian, R., Avetissian, A., Avetissian, E., Bacchetta, A., Bailey, P., Balin, D., Beckmann, M., Belostotski, S., Bianchi, N., Blok, H., Böttcher, H., Borissov, A., ...Zupranski, P. (2005). Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target -: art. no. 012002. Physical Review Letters. 94(1), Article 012002. https://doi.org/10.1103/PhysRevLett.94.012002

Zitierstile

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