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Collins and Sivers asymmetries for pions and kaons in muon–deuteron DIS

2009; Elsevier BV; Volume: 673; Issue: 2 Linguagem: Inglês

10.1016/j.physletb.2009.01.060

1873-2445

M. Alekseev, V. Alexakhin, Yu. Alexandrov, G. D. Alexeev, A. Amoroso, A. B. Arbuzov, B. Badełek, F. Balestra, J. Ball, J. Barth, G. Baum, Y. Bedfer, C. Bernet, R. Bertini, Marco Bettinelli, R. Birsa, J. Bisplinghoff, P. Bordalo, F. Bradamante, A. Bravar, A. Bressan, G. Brona, E. Burtin, M.P. Bussa, A. Chapiró, M. Chiosso, A. Cicuttin, M. Colantoni, S. Costa, M.L. Crespo, S. Dalla Torre, T. Dafní, Sudipta Das, S. Dasgupta, R. De Masi, N. Dedek, О. Денисов, L. Dhara, V. Diaz, A.M. Dinkelbach, S.V. Donskov, V. A. Dorofeev, N. Doshita, V. Duic, W. Dünnweber, А. В. Ефремов, P.D. Eversheim, W. Eyrich, M. Faessler, V. Falaleev, A. Ferrero, L. Ferrero, M. Finger, M. Finger, H. Fischer, C. Franco, J. Franz, J. Friedrich, V. Frolov, R. Garfagnini, F. Gautheron, O.P. Gavrichtchouk, R. Gazda, S. Gerassimov, R. Geyer, M. Giorgi, B. Gobbo, S. Goertz, A.M. Gorin, S. Grabmüller, O.A. Grajek, A. Grasso, B. Grube, R. Gushterski, A. Guskov, F. Haas, J. Hannappel, D. von Harrach, T. Hasegawa, J. Heckmann, S. Hedicke, F. H. Heinsius, R. Hermann, C. Heß, F. Hinterberger, M. von Hodenberg, N. Horikawa, Shin Horikawa, N. d’Hose, C. Ilgner, A.I. Ioukaev, S. Ishimoto, O. N. Ivanov, Yu. I. Ivanshin, T. Iwata, R. Jahn, A. Janata, P. Jasinski, R. Joosten, N.I. Jouravlev, E. Kabuß, D. Kang, B. Ketzer, G.V. Khaustov, Yu. Khokhlov, Yu. Kisselev, F. Klein, K. Klimaszewski, S. Koblitz, J.H. Koivuniemi, V.N. Kolosov, E.V. Komissarov, Kazuhiro Kondo, K. Königsmann, I. Konorov, В.Ф. Константинов, A.S. Korentchenko, A. Korzenev, A.M. Kotzinian, N.A. Koutchinski, O. Kouznetsov, A. Král, N. P. Kravchuk, Z. Kroumchtein, R. Kuhn, F. Kunne, K. Kurek, M.E. Ladygin, M. Lamanna, J.M. Le Goff, A.A. Lednev, A. Lehmann, S. Levorato, J. Lichtenstadt, T. Liška, I. Ludwig, A. Maggiora, M. Maggiora, A. Magnon, G.K. Mallot, A. Mann, C. Marchand, J. Marroncle, A. Martin, J. Marzec, F. Massmann, T. Matsuda, A.N. Maximov, W. Meyer, A. Mielech, Yu.V. Mikhailov, M.A. Moinester, A. Mutter, A. Nagaytsev, T. Nagel, O. Nähle, J. Nassalski, S. Neliba, F. Nerling, S. Neubert, D. Neyret, V.I. Nikolaenko, K. Nikolaev, А.G. Оlshevsky, M. Ostrick, A. Padee, Paolo Pagano, S. Panebianco, R. Panknin, D. Panzieri, S. Paul, B. Pawlukiewicz-Kaminska, G. Pesaro, D. V. Peshekhonov, V. D. Peshekhonov, G. Piragino, S. Platchkov, J. Pochodzalla, J. Polak, V.A. Polyakov, J. Pretz, S. Procureur, C. Quintans, Jean-François Rajotte, S. Ramos, V. Rapatsky, G. Reicherz, D. Reggiani, A. Richter, F. Robinet, E. Rocco, E. Rondio, A.M. Rozhdestvensky, D.I. Ryabchikov, V. D. Samoylenko, A. Sandacz, H. Santos, M.G. Sapozhnikov, S. Sarkar, I. Savin, G. Sbrizzai, P. Schiavon, C. Schill, L. Schmitt, P. Schönmeier, W. Schröder, O. Yu. Shevchenko, H.W. Siebert, L. Silva, L. Sinha, A. Sissakian, M. Slunečka, G.I. Smirnov, S. Sosio, F. Sozzi, A. Srnka, F. Stinzing, M. Stolarski, V.P. Sugonyaev, M. Šulc, R. Sulej, V.V. Tchalishev, S. Tessaro, F. Tessarotto, Andreas Teufel, L.G. Tkatchev, G. Venugopal, M. Virius, N.V. Vlassov, A. Vossen, R. Webb, E. Weise, Q. Weitzel, R. Windmolders, S. Wirth, W. Wiślicki, H. Wollny, К. Заремба, M. Zavertyaev, E. Zemlyanichkina, J. Zhao, Robert Ziegler, A. Zvyagin,

Particle Detector Development and Performance

The measurements of the Collins and Sivers asymmetries of identified hadrons produced in deep-inelastic scattering of 160 GeV/c muons on a transversely polarised 6LiD target at COMPASS are presented. The results for charged pions and charged and neutral kaons correspond to all data available, which were collected from 2002 to 2004. For all final state particles both, the Collins and Sivers asymmetries turn out to be small, compatible with zero within the statistical errors, in line with the previously published results for not identified charged hadrons, and with the expected cancellation between the u- and d-quark contributions.