Journal article

Evidence for quark-hadron duality in the proton spin asymmetry A1 -: art. no. 092002


Authors listAirapetian, A; Akopov, N; Akopov, Z; Amarian, M; Ammosov, VV; Aschenauer, EC; Avakian, H; Avakian, R; Avetissian, A; Avetissian, E; Bailey, P; Baturin, V; Baumgarten, C; Beckmann, M; Belostotski, S; Bernreuther, S; Bianchi, N; Blok, HP; Böttcher, H; Borissov, A; Bouhali, O; Bouwhuis, M; Brack, J; Brauksiepe, S; Brüll, A; Brunn, I; Bulten, HJ; Capitani, GP; Cisbani, E; Ciullo, G; Court, GR; Dalpiaz, PF; De Leo, R; De Nardo, L; De Sanctis, E; Devitsin, E; Huberts, PKAD; Di Nezza, P; Düren, M; Ehrenfried, M; Elbakian, G; Ellinghaus, F; Elschenbroich, U; Ely, J; Fabbri, R; Fantoni, A; Fechtchenko, A; Felawka, L; Filippone, BW; Fischer, H; Fox, B; Franz, J; Frullani, S; Gärber, Y; Gapienko, V; Garibaldi, F; Garutti, E; Gavrilov, G; Gharibyan, V; Graw, G; Grebeniouk, O; Green, PW; Greeniaus, LG; Gute, A; Haeberli, W; Hafidi, K; Hartig, M; Hasch, D; Heesbeen, D; Heinsius, FH; Henoch, M; Hertenberger, R; Hesselink, WHA; Hofman, G; Holler, Y; Holt, RJ; Hommez, B; Iarygin, G; Izotov, A; Jackson, HE; Jgoun, A; Jung, P; Kaiser, R; Kinney, E; Kisselev, A; Kitching, P; Königsmann, K; Kolster, H; Kopytin, M; Korotkov, V; Kotik, E; Kozlov, V; Krauss, B; Krivokhijine, VG; Kyle, G; Lagamba, L; Laziev, A; Lenisa, P; Liebing, P; Lindemann, T; Lorenzon, W; Maas, A; Makins, NCR; Marukyan, H; Masoli, F; Menden, F; Mexner, V; Meyners, N; Mikloukho, O; Miller, CA; Muccifora, V; Nagaitsev, A; Nappi, E; Naryshkin, Y; Nass, A; Negodaeva, K; Nowak, WD; Oganessyan, K; Orlandi, G; Podiatchev, S; Potashov, S; Potterveld, DH; Raithel, M; Rappoport, V; Reggiani, D; Reimer, P; Reischl, A; Reolon, AR; Rith, K; Rostomyan, A; Ryckbosch, D; Sakemi, Y; Sanjiev, I; Sato, F; Savin, I; Scarlett, C; Schäfer, A; Schill, C; Schmidt, F; Schnell, G; Schüler, KP; Schwind, A; Seibert, J; Seitz, B; Shanidze, R; Shibata, TA; Shutov, V; Simani, MC; Sinram, K; Stancari, M; Steffens, E; Steijger, JJM; Stewart, J; Stösslein, U; Suetsugu, K; Taroian, S; Terkulov, A; Tessarin, S; Thomas, E; Tipton, B; Tytgat, M; Urciuoli, GM; van den Brand, JFJ; van der Steenhoven, G; van de Vyver, R; Vetterli, MC; Vikhrov, V; Vincter, MG; Visser, J; Volmer, J; Weiskopf, C; Wendland, J; Wilbert, J; Wise, T; Yen, S; Yoneyama, S; Zihlmann, B; Zohrabian, H

Publication year2003

JournalPhysical Review Letters

Volume number90

Issue number9

ISSN0031-9007

eISSN1079-7114

DOI Linkhttps://doi.org/10.1103/PhysRevLett.90.092002

PublisherAmerican Physical Society


Abstract
Spin-dependent lepton-nucleon scattering data have been used to investigate the validity of the concept of quark-hadron duality for the spin asymmetry A(1). Longitudinally polarized positrons were scattered off a longitudinally polarized hydrogen target for values of Q(2) between 1.2 and 12 GeV2 and values of W-2 between 1 and 4 GeV2. The average double-spin asymmetry in the nucleon resonance region is found to agree with that measured in deep-inelastic scattering at the same values of the Bjorken scaling variable x. This finding implies that the description of A(1) in terms of quark degrees of freedom is valid also in the nucleon resonance region for values of Q(2) above 1.6 GeV2.



Citation Styles

Harvard Citation styleAirapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V., Aschenauer, E., et al. (2003) Evidence for quark-hadron duality in the proton spin asymmetry A1 -: art. no. 092002, Physical Review Letters, 90(9), Article 092002. https://doi.org/10.1103/PhysRevLett.90.092002

APA Citation styleAirapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V., Aschenauer, E., Avakian, H., Avakian, R., Avetissian, A., Avetissian, E., Bailey, P., Baturin, V., Baumgarten, C., Beckmann, M., Belostotski, S., Bernreuther, S., Bianchi, N., Blok, H., Böttcher, H., ...Zohrabian, H. (2003). Evidence for quark-hadron duality in the proton spin asymmetry A1 -: art. no. 092002. Physical Review Letters. 90(9), Article 092002. https://doi.org/10.1103/PhysRevLett.90.092002



Keywords


CONSTRAINTSNEUTRONPOLARIMETERPOLARIZED HYDROGENQ(2)-DEPENDENCERESONANCESSUM

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