II - Experimental investigation of transverse spin asymmetries in mu-p SIDIS processes: Sivers asymmetries
- Adolph, C.
- Alekseev, M.G.
- Alexakhin, V.Yu.
- Alexandrov, Yu.
- Alexeev, G.D.
- Amoroso, A.
- Antonov, A.A.
- Austregesilo, A.
- Badełek, B.
- Balestra, F.
- Barth, J.
- Baum, G.
- Bedfer, Y.
- Bernhard, J.
- Bertini, R.
- Bettinelli, M.
- Bicker, K.
- Bieling, J.
- Birsa, R.
- Bisplinghoff, J.
- Bordalo, P.
- Bradamante, F.
- Braun, C.
- Bravar, A.
- Bressan, A.
- Burtin, E.
- Scapozza, Leonardo
- Chiosso, M.
- Chung, S.U.
- Cicuttin, A.
- Crespo, M.L.
- Dalla Torre, S.
- Das, S.
- Dasgupta, S.S.
- Denisov, O.Yu.
- Dhara, L.
- Donskov, S.V.
- Doshita, N.
- Duic, V.
- Dünnweber, W.
- Dziewiecki, M.
- Efremov, A.
- Elia, C.
- Eversheim, P.D.
- Eyrich, W.
- Faessler, M.
- Ferrero, A.
- Filin, A.
- Finger, M.
- Fischer, H.
- Franco, C.
- Du Fresne von Hohenesche, N.
- Friedrich, J.M.
- Garfagnini, R.
- Gautheron, F.
- Gavrichtchouk, O.P.
- Gazda, R.
- Gerassimov, S.
- Geyer, R.
- Giorgi, M.
- Gnesi, I.
- Gobbo, B.
- Goertz, S.
- Grabmüller, S.
- Grasso, A.
- Grube, B.
- Gushterski, R.
- Guskov, A.
- Guthörl, T.
- Haas, F.
- von Harrach, D.
- Hedicke, S.
- Heinsius, F.H.
- Herrmann, F.
- Hess, C.
- Hinterberger, F.
- Horikawa, N.
- Höppner, Ch.
- Dʼhose, N.
- Huber, S.
- Ishimoto, S.
- Ivanov, O.
- Ivanshin, Yu.
- Iwata, T.
- Jahn, R.
- Jasinski, P.
- Joosten, R.
- Kabuss, E.
- Kang, D.
- Ketzer, B.
- Khaustov, G.V.
- Khokhlov, Yu.A.
- Kisselev, Yu.
- Klein, F.
- Klimaszewski, K.
- Koblitz, S.
- Koivuniemi, J.H.
- Kolosov, V.N.
- Kondo, K.
- Königsmann, K.
- Konorov, I.
- Konstantinov, V.F.
- Korzenev, A.
- Kotzinian, A.M.
- Kouznetsov, O.
- Krämer, M.
- Kroumchtein, Z.V.
- Kunne, F.
- Kurek, K.
- Lauser, L.
- Le Goff, J.-M.
- Lednev, A.A.
- Lehmann, A.
- Levorato, S.
- Lichtenstadt, J.
- Maggiora, A.
- Magnon, A.
- Makke, N.
- Mallot, G.K.
- Mann, A.
- Marchand, C.
- Martin, A.
- Marzec, J.
- Matsuda, T.
- Meyer, W.
- Michigami, T.
- Mikhailov, Yu.V.
- Moinester, M.A.
- Morreale, A.
- Mutter, A.
- Nagaytsev, A.
- Nagel, T.
- Nassalski, J.P.
- Nerling, F.
- Neubert, S.
- Neyret, D.
- Nikolaenko, V.I.
- Nowak, W.D.
- Nunes, A.S.
- Olshevsky, A.G.
- Ostrick, M.
- Padee, A.
- Panknin, R.
- Panzieri, D.
- Parsamyan, B.
- Paul, S.
- Perevalova, E.
- Pesaro, G.
- Peshekhonov, D.V.
- Piragino, G.
- Platchkov, S.
- Pochodzalla, J.
- Polak, J.
- Polyakov, V.A.
- Pontecorvo, G.
- Pretz, J.
- Procureur, S.L.
- Quaresma, M.
- Quintans, C.
- Rajotte, J.-F.
- Ramos, S.
- Rapatsky, V.
- Reicherz, G.
- Richter, A.
- Rocco, E.
- Rondio, E.
- Rossiyskaya, N.S.
- Ryabchikov, D.I.
- Samoylenko, V.D.
- Sandacz, A.
- Sapozhnikov, M.G.
- Sarkar, S.
- Savin, I.A.
- Sbrizzai, G.
- Schiavon, P.
- Schill, C.
- Schlüter, T.
- Schmidt, K.
- Schmitt, L.
- Schönning, K.
- Schopferer, S.
- Schott, M.
- Shevchenko, O.Yu.
- Silva, L.
- Sinha, L.
- Sissakian, A.N.
- Slunecka, M.
- Smirnov, George
- Sosio, S.
- Sozzi, F.
- Srnka, A.
- Stolarski, M.
- Sulc, M.
- Sulej, R.
- Suzuki, H.
- Sznajder, P.
- Takekawa, S.
- ter Wolbeek, J.
- Tessaro, S.
- Tessarotto, F.
- Tkatchev, L.G.
- Uhl, S.
- Uman, I.
- Vandenbroucke, M.
- Virius, M.
- Vlassov, N.V.
- Wang, L.
- Wilfert, M.
- Windmolders, R.
- Wiślicki, W.
- Wollny, H.
- Zaremba, K.
- Zavertyaev, M.
- Zemlyanichkina, E.
- Ziembicki, M.
- Zhuravlev, N.
- Zvyagin, A.
DOIAbstract
International audienceThe COMPASS Collaboration at CERN has measured the transverse spin azimuthal asymmetry of charged hadrons produced in semi-inclusive deep inelastic scattering using a 160 GeV mu(+) beam and a transversely polarised NH3 target. The Sivers asymmetry of the proton has been extracted in the Bjorken x range 0.003 0.03. The asymmetry is different from zero and positive also in the low x region, where sea-quarks dominate. The kinematic dependence of the asymmetry has also been investigated and results are given for various intervals of hadron and virtual photon fractional energy. In contrast to the case of the Collins asymmetry, the results on the Sivers asymmetry suggest a strong dependence on the four-momentum transfer to ...
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