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Collins and Sivers asymmetries in muonproduction of pions and kaons off transversely polarised protons

  • C. Adolph
  • , R. Akhunzyanov
  • , M. G. Alexeev
  • , G. D. Alexeev
  • , A. Amoroso
  • , V. Andrieux
  • , V. Anosov
  • , A. Austregesilo
  • , B. Badełek
  • , F. Balestra
  • , J. Barth
  • , G. Baum
  • , R. Beck
  • , Y. Bedfer
  • , A. Berlin
  • , J. Bernhard
  • , K. Bicker
  • , E. R. Bielert
  • , J. Bieling
  • , R. Birsa
  • J. Bisplinghoff, M. Bodlak, M. Boer, P. Bordalo, F. Bradamante, C. Braun, A. Bressan, M. Büchele, E. Burtin, L. Capozza, M. Chiosso, S. U. Chung, A. Cicuttin, M. L. Crespo, Q. Curiel, S. Dalla Torre, S. S. Dasgupta, S. Dasgupta, O. Yu Denisov, S. V. Donskov, N. Doshita, V. Duic, W. Dünnweber, M. Dziewiecki, A. Efremov, C. Elia, P. D. Eversheim, W. Eyrich, M. Faessler, A. Ferrero, M. Finger, M. Finger, H. Fischer, C. Franco, N. du Fresne von Hohenesche, J. M. Friedrich, V. Frolov, F. Gautheron, O. P. Gavrichtchouk, S. Gerassimov, R. Geyer, I. Gnesi, B. Gobbo, S. Goertz, M. Gorzellik, S. Grabmüller, A. Grasso, B. Grube, T. Grussenmeyer, A. Guskov, F. Haas, D. von Harrach, D. Hahne, R. Hashimoto, F. H. Heinsius, F. Herrmann, F. Hinterberger, Ch Höppner, N. Horikawa, N. d'Hose, S. Huber, S. Ishimoto, A. Ivanov, Yu Ivanshin, T. Iwata, R. Jahn, V. Jary, P. Jasinski, P. Jörg, R. Joosten, E. Kabuß, B. Ketzer, G. V. Khaustov, Yu A. Khokhlov, Yu Kisselev, F. Klein, K. Klimaszewski, J. H. Koivuniemi, V. N. Kolosov, K. Kondo, K. Königsmann, I. Konorov, V. F. Konstantinov, A. M. Kotzinian, O. Kouznetsov, M. Krämer, Z. V. Kroumchtein, N. Kuchinski, F. Kunne, K. Kurek, R. P. Kurjata, A. A. Lednev, A. Lehmann, M. Levillain, S. Levorato, J. Lichtenstadt, A. Maggiora, A. Magnon, N. Makke, G. K. Mallot, C. Marchand, A. Martin, J. Marzec, J. Matousek, H. Matsuda, T. Matsuda, G. Meshcheryakov, W. Meyer, T. Michigami, Yu V. Mikhailov, Y. Miyachi, A. Nagaytsev, T. Nagel, F. Nerling, S. Neubert, D. Neyret, J. Novy, W. D. Nowak, A. S. Nunes, A. G. Olshevsky, I. Orlov, M. Ostrick, R. Panknin, D. Panzieri, B. Parsamyan, S. Paul, G. Pesaro, D. V. Peshekhonov, S. Platchkov, J. Pochodzalla, V. A. Polyakov, J. Pretz, M. Quaresma, C. Quintans, S. Ramos, C. Regali, G. Reicherz, E. Rocco, N. S. Rossiyskaya, D. I. Ryabchikov, A. Rychter, V. D. Samoylenko, A. Sandacz, S. Sarkar, I. A. Savin, G. Sbrizzai, P. Schiavon, C. Schill, T. Schlüter, K. Schmidt, H. Schmieden, K. Schönning, S. Schopferer, M. Schott, O. Yu Shevchenko, L. Silva, L. Sinha, S. Sirtl, M. Slunecka, S. Sosio, F. Sozzi, A. Srnka, L. Steiger, M. Stolarski, M. Sulc, R. Sulej, H. Suzuki, A. Szabelski, T. Szameitat, P. Sznajder, S. Takekawa, J. ter Wolbeek, S. Tessaro, F. Tessarotto, F. Thibaud, S. Uhl, I. Uman, M. Virius, L. Wang, T. Weisrock, M. Wilfert, R. Windmolders, H. Wollny, K. Zaremba, M. Zavertyaev, E. Zemlyanichkina, M. Ziembicki, A. Zink
  • Friedrich-Alexander Universitat Erlangen-Nurnberg (FAU)
  • Joint Inst. for Nuclear Research
  • University of Torino
  • INFN Sez. di Torino
  • CEA Saclay
  • European Organization for Nuclear Research
  • Technical University of Munich
  • University of Warsaw
  • Rheinische Friedrich-Wilhelms-Universität Bonn
  • Universität Bielefeld
  • Max-Planck-lnstitut für Kohlenforschung
  • Johannes Gutenberg University
  • INFN- Sezione di Trieste
  • Charles University in Prague
  • LIP - Lisboa
  • Instituto Superior Técnico
  • University of Trieste Via A
  • Albert-Ludwigs-Universität Freiburg
  • Pusan National University
  • Brookhaven National Laboratory
  • ICTP
  • Matrivani Institute of Experimental Research & Education
  • Institute for High Energy Physics (IHEP)
  • Yamagata University
  • Ludwig-Maximilians-Universität München
  • Warsaw Institute of Technology
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • Nagoya University
  • Chubu University
  • Czech Technical University in Prague
  • Moscow Institute of Physics and Technology
  • National Center for Nuclear Research (NCBJ)
  • Tel Aviv University
  • University of Miyazaki
  • University of Eastern Piedmont
  • RWTH Aachen University
  • Institute of Scientific Instruments of the Academy of Sciences of the Czech Republic
  • Technical University of Liberec

Research output: Contribution to journalArticlepeer-review

121 Scopus citations

Abstract

Measurements of the Collins and Sivers asymmetries for charged pions and charged and neutral kaons produced in semi-inclusive deep-inelastic scattering of high energy muons off transversely polarised protons are presented. The results were obtained using all the available COMPASS proton data, which were taken in the years 2007 and 2010. The Collins asymmetries exhibit in the valence region a non-zero signal for pions and there are hints of non-zero signal also for kaons. The Sivers asymmetries are found to be positive for positive pions and kaons and compatible with zero otherwise.

Original languageEnglish
Pages (from-to)250-259
Number of pages10
JournalPhysics Letters B
Volume744
DOIs
StatePublished - 2015

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