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Flavor decomposition of the sea-quark helicity distributions in the nucleon from semiinclusive deep inelastic scattering (2004) |
- Airapetian, A.,
- Akopov, N.,
- Akopov, Z.,
- Amarian, M.,
- Ammosov, V.V.,
- Andrus, A.,
- Aschenauer, E.C.,
- Augustyniak, W.,
- Avakian, R.,
- Avetissian, A.,
- Avetissian, E.,
- Bailey, P.,
- Baturin, V.,
- Baumgarten, C.,
- Beckmann, M.,
- Belostotski, S.,
- Bernreuther, S.,
- Bianchi, N.,
- Blok, H.P.,
- Bottcher, H.,
- Borissov, A.,
- Bouwhuis, M.,
- Brack, J.,
- Brull, A.,
- Bryzgalov, V.,
- Capitani, G.P.,
- Chiang, H.C.,
- Ciullo, G.,
- Contalbrigo, M.,
- Dalpiaz, P.F.,
- De Leo, R.,
- De Nardo, L.,
- De Sanctis, E.,
- Devitsin, E.,
- Di Nezza, P.,
- Duren, M.,
- Ehrenfried, M.,
- Elalaoui-Moulay, A.,
- Elbakian, G.,
- Ellinghaus, F.,
- Elschenbroich, U.,
- Ely, J.,
- Fabbri, R.,
- Fantoni, A.,
- Fechtchenko, A.,
- Felawka, L.,
- Fox, B.,
- Franz, J.,
- Frullani, S.,
- Garber, Y.,
- Gapienko, G.,
- Gapienko, V.,
- Garibaldi, F.,
- Garrow, K.,
- Garutti, E.,
- Gaskell, D.,
- Gavrilov, G.,
- Gharibyan, V.,
- Graw, G.,
- Grebeniouk, O.,
- Greeniaus, L.G.,
- Hafidi, K.,
- Hartig, M.,
- Hasch, D.,
- Heesbeen, D.,
- Henoch, M.,
- Hertenberger, R.,
- Hesselink, W.H.A.,
- Hillenbrand, A.,
- Hoek, M.,
- Holler, Y.,
- Hommez, B.,
- Iarygin, G.,
- Ivanilov, A.,
- Izotov, A.,
- Jackson, H.E.,
- Jgoun, A.,
- Kaiser, R.,
- Kinney, E.,
- Kisselev, A.,
- Konigsmann, K.,
- Kopytin, M.,
- Korotkov, V.,
- Kozlov, V.,
- Krauss, B.,
- Krivokhijine, V.G.,
- Lagamba, L.,
- Lapikas, L.,
- Laziev, A.,
- Lenisa, P.,
- Liebing, P.,
- Lindemann, T.,
- Lipka, K.,
- Lorenzon, W.,
- Lu, J.,
- Maiheu, B.,
- Makins, N.C.R.,
- Marianski, B.,
- Marukyan, H.,
- Masoli, F.,
- Mexner, V.,
- Meyners, N.,
- Mikloukho, O.,
- Miller, C.A.,
- Miyachi, Y.,
- Muccifora, V.,
- Nagaitsev, A.,
- Nappi, E.,
- Naryshkin, Y.,
- Nass, A.,
- Negodaev, M.,
- Nowak, W.D.,
- Oganessyan, K.,
- Ohsuga, H.,
- Orlandi, G.,
- Pickert, N.,
- Potashov, S.,
- Potterveld, D.H.,
- Raithel, M.,
- Reggiani, D.,
- Reimer, P.E.,
- Reischl, A.,
- Reolon, A.R.,
- Riedl, C.,
- Rith, K.,
- Rosner, G.,
- Rostomyan, A.,
- Rubacek, L.,
- Ryckbosch, D.,
- Salomatin, Y.,
- Sanjiev, I.,
- Savin, I.,
- Scarlett, C.,
- Schafer, A.,
- Schill, C.,
- Schnell, G.,
- Schuler, K.P.,
- Schwind, A.,
- Seele, J.,
- Seidl, R.,
- Seitz, B.,
- Shanidze, R.,
- Shearer, C.,
- Shibata, T.A.,
- Shutov, V.,
- Simani, M.C.,
- Sinram, K.,
- Stancari, M.,
- Statera, M.,
- Steffens, E.,
- Steijger, J.J.M.,
- Stewart, J.,
- Stosslein, U.,
- Tait, P.,
- Tanaka, H.,
- Taroian, S.,
- Tchuiko, B.,
- Terkulov, A.,
- Tkabladze, A.,
- Trzcinski, A.,
- Tytgat, M.,
- Vandenbroucke, A.,
- Vetterli, M.C.,
- Vikhrov, V.,
- Vincter, M.G.,
- Visser, J.,
- Vogel, C.,
- Vogt, M.,
- Volmer, J.,
- Weiskopf, C.,
- Wendland, J.,
- Wilbert, J.,
- Smit, G.Y.,
- Yen, S.,
- Zihlmann, B.,
- Zohrabian, H.,
- Zupranski, P.
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Abstract |
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Double-spin asymmetries of semiinclusive cross sections for the production of identified pions and kaons have been measured in deep inelastic scattering of polarized positrons on a polarized deuterium target. Five helicity distributions including those for three sea quark flavors were extracted from these data together with reanalyzed previous data for identified pions from a hydrogen target. These distributions are consistent with zero for all three sea flavors. A recently predicted flavor asymmetry in the polarization of the light quark sea appears to be disfavored by the data. |
Publication details |
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