CERN Accelerating science

Article
Report number arXiv:1401.7873 ; CERN-PH-EP-2014-013 ; CERN-PH-EP-2014-013
Title A high-statistics measurement of transverse spin effects in dihadron production from muon-proton semi-inclusive deep-inelastic scattering
Author(s)

Adolph, C. (Erlangen - Nuremberg U.) ; Akhunzyanov, R. (Dubna, JINR) ; Alekseev, M.G. (INFN, Trieste) ; Alexandrov, Yu. (Lebedev Inst.) ; Alexeev, G.D. (Dubna, JINR) ; Amoroso, A. (Turin U. ; INFN, Turin) ; Andrieux, V. (IRFU, SPhN, Saclay) ; Anosov, V. (Dubna, JINR) ; Austregesilo, A. (CERN ; Munich, Tech. U.) ; Badelek, B. (Warsaw U.) ; Balestra, F. (Turin U. ; INFN, Turin) ; Barth, J. (Bonn U.) ; Baum, G. (Bielefeld U.) ; Beck, R. (Bonn U., HISKP) ; Bedfer, Y. (IRFU, SPhN, Saclay) ; Berlin, A. (Ruhr U., Bochum) ; Bernhard, J. (Mainz U., Inst. Kernphys.) ; Bertini, R. (Turin U. ; INFN, Turin) ; Bicker, K. (CERN ; Munich, Tech. U.) ; Bieling, J. (Bonn U.) ; Birsa, R. (INFN, Trieste) ; Bisplinghoff, J. (Bonn U., HISKP) ; Bodlak, M. (Charles U.) ; Boer, M. (IRFU, SPhN, Saclay) ; Bordalo, P. (LIP, Lisbon ; IST, Lisbon (main)) ; Bradamante, F. (Trieste U. ; CERN) ; Braun, C. (Erlangen - Nuremberg U.) ; Bravar, A. (INFN, Trieste) ; Bressan, A. (Trieste U. ; INFN, Trieste) ; Buchele, M. (Freiburg U.) ; Burtin, E. (IRFU, SPhN, Saclay) ; Capozza, L. (IRFU, SPhN, Saclay) ; Chiosso, M. (Turin U. ; INFN, Turin) ; Chung, S.U. (Munich, Tech. U. ; Pusan Natl. U. ; Brookhaven) ; Cicuttin, A. (ICTP, Trieste ; INFN, Trieste) ; Crespo, M.L. (ICTP, Trieste ; INFN, Trieste) ; Curiel, Q. (IRFU, SPhN, Saclay) ; Dalla Torre, S. (INFN, Trieste) ; Dasgupta, S.S. (Matrivani Inst., Calcutta) ; Dasgupta, S. (INFN, Trieste) ; Denisov, O.Yu. (INFN, Turin) ; Donskov, S.V. (Serpukhov, IHEP) ; Doshita, N. (Yamagata U.) ; Duic, V. (Trieste U.) ; Dunnweber, W. (Munich U.) ; Dziewiecki, M. (Warsaw U. of Tech.) ; Efremov, A. (Dubna, JINR) ; Elia, C. (Trieste U. ; INFN, Trieste) ; Eversheim, P.D. (Bonn U., HISKP) ; Eyrich, W. (Erlangen - Nuremberg U.) ; Faessler, M. (Munich U.) ; Ferrero, A. (IRFU, SPhN, Saclay) ; Filin, A. (Serpukhov, IHEP) ; Finger, M. (Charles U.) ; Finger, M., Jr. (Charles U.) ; Fischer, H. (Freiburg U.) ; Franco, C. (LIP, Lisbon) ; du Fresne von Hohenesche, N. (Mainz U., Inst. Kernphys. ; CERN) ; Friedrich, J.M. (Munich, Tech. U.) ; Frolov, V. (CERN) ; Garfagnini, R. (Turin U. ; INFN, Turin) ; Gautheron, F. (Ruhr U., Bochum) ; Gavrichtchouk, O.P. (Dubna, JINR) ; Gerassimov, S. (Lebedev Inst. ; Munich, Tech. U.) ; Geyer, R. (Munich U.) ; Giorgi, M. (Trieste U. ; INFN, Trieste) ; Gnesi, I. (Turin U. ; INFN, Turin) ; Gobbo, B. (INFN, Trieste) ; Goertz, S. (Bonn U.) ; Gorzellik, M. (Freiburg U.) ; Grabmuller, S. (Munich, Tech. U.) ; Grasso, A. (Turin U. ; INFN, Turin) ; Grube, B. (Munich, Tech. U.) ; Guskov, A. (Dubna, JINR) ; Guthorl, T. (Freiburg U.) ; Haas, F. (Munich, Tech. U.) ; von Harrach, D. (Mainz U., Inst. Kernphys.) ; Hahne, D. (Bonn U.) ; Hashimoto, R. (Yamagata U.) ; Heinsius, F.H. (Freiburg U.) ; Herrmann, F. (Freiburg U.) ; Hinterberger, F. (Bonn U., HISKP) ; Hoppner, Ch. (Munich, Tech. U.) ; Horikawa, N. (Nagoya U. ; Chubu U.) ; d'Hose, N. (IRFU, SPhN, Saclay) ; Huber, S. (Munich, Tech. U.) ; Ishimoto, S. (Yamagata U. ; KEK, Tsukuba) ; Ivanov, A. (Dubna, JINR) ; Ivanshin, Yu. (Dubna, JINR) ; Iwata, T. (Yamagata U.) ; Jahn, R. (Bonn U., HISKP) ; Jary, V. (Prague, Tech. U.) ; Jasinski, P. (Mainz U., Inst. Kernphys.) ; Joerg, P. (Freiburg U.) ; Joosten, R. (Bonn U., HISKP) ; Kabuss, E. (Mainz U., Inst. Kernphys.) ; Kang, D. (Mainz U., Inst. Kernphys.) ; Ketzer, B. (Munich, Tech. U.) ; Khaustov, G.V. (Serpukhov, IHEP) ; Khokhlov, Yu. A. (Serpukhov, IHEP ; Moscow, MIPT) ; Kisselev, Yu. (Dubna, JINR) ; Klein, F. (Bonn U.) ; Klimaszewski, K. (Warsaw, Inst. Nucl. Studies) ; Koivuniemi, J.H. (Ruhr U., Bochum) ; Kolosov, V.N. (Serpukhov, IHEP) ; Kondo, K. (Yamagata U.) ; Konigsmann, K. (Freiburg U.) ; Konorov, I. (Lebedev Inst. ; Munich, Tech. U.) ; Konstantinov, V.F. (Serpukhov, IHEP) ; Kotzinian, A.M. (Turin U. ; INFN, Turin) ; Kouznetsov, O. (Dubna, JINR) ; Kral, Z. (Prague, Tech. U.) ; Kramer, M. (Munich, Tech. U.) ; Kroumchtein, Z.V. (Dubna, JINR) ; Kuchinski, N. (Dubna, JINR) ; Kunne, F. (IRFU, SPhN, Saclay) ; Kurek, K. (Warsaw, Inst. Nucl. Studies) ; Kurjata, R.P. (Warsaw U. of Tech.) ; Lednev, A.A. (Serpukhov, IHEP) ; Lehmann, A. (Erlangen - Nuremberg U.) ; Levorato, S. (INFN, Trieste) ; Lichtenstadt, J. (Tel Aviv U.) ; Maggiora, A. (INFN, Turin) ; Magnon, A. (IRFU, SPhN, Saclay) ; Makke, N. (Trieste U. ; INFN, Trieste) ; Mallot, G.K. (CERN) ; Marchand, C. (IRFU, SPhN, Saclay) ; Martin, A. (Trieste U. ; INFN, Trieste) ; Marzec, J. (Warsaw U. of Tech.) ; Matousek, J. (Charles U.) ; Matsuda, H. (Yamagata U.) ; Matsuda, T. (Miyazaki U.) ; Meshcheryakov, G. (Dubna, JINR) ; Meyer, W. (Ruhr U., Bochum) ; Michigami, T. (Yamagata U.) ; Mikhailov, Yu. V. (Serpukhov, IHEP) ; Miyachi, Y. (Yamagata U.) ; Nagaytsev, A. (Dubna, JINR) ; Nagel, T. (Munich, Tech. U.) ; Nerling, F. (Freiburg U.) ; Neubert, S. (Munich, Tech. U.) ; Neyret, D. (IRFU, SPhN, Saclay) ; Nikolaenko, V.I. (Serpukhov, IHEP) ; Novy, J. (Prague, Tech. U.) ; Nowak, W.D. (Freiburg U.) ; Nunes, A.S. (LIP, Lisbon) ; Orlov, I. (Dubna, JINR) ; Olshevsky, A.G. (Dubna, JINR) ; Ostrick, M. (Mainz U., Inst. Kernphys.) ; Panknin, R. (Bonn U.) ; Panzieri, D. (Piemonte Orientale U., Alessandria ; INFN, Turin) ; Parsamyan, B. (Turin U. ; INFN, Turin) ; Paul, S. (Munich, Tech. U.) ; Pesek, M. (Charles U.) ; Peshekhonov, D. (Dubna, JINR) ; Piragino, G. (Turin U. ; INFN, Turin) ; Platchkov, S. (IRFU, SPhN, Saclay) ; Pochodzalla, J. (Mainz U., Inst. Kernphys.) ; Polak, J. (Liberec Tech. U. ; INFN, Trieste) ; Polyakov, V.A. (Serpukhov, IHEP) ; Pretz, J. (Bonn U. ; Aachen, Tech. Hochsch.) ; Quaresma, M. (LIP, Lisbon) ; Quintans, C. (LIP, Lisbon) ; Ramos, S. (LIP, Lisbon ; IST, Lisbon (main)) ; Reicherz, G. (Ruhr U., Bochum) ; Rocco, E. (CERN) ; Rodionov, V. (Dubna, JINR) ; Rondio, E. (Warsaw, Inst. Nucl. Studies) ; Rychter, A. (Warsaw U. of Tech.) ; Rossiyskaya, N.S. (Dubna, JINR) ; Ryabchikov, D.I. (Serpukhov, IHEP) ; Samoylenko, V.D. (Serpukhov, IHEP) ; Sandacz, A. (Warsaw, Inst. Nucl. Studies) ; Sarkar, S. (Matrivani Inst., Calcutta) ; Savin, I.A. (Dubna, JINR) ; Sbrizzai, G. (Trieste U. ; INFN, Trieste) ; Schiavon, P. (Trieste U. ; INFN, Trieste) ; Schill, C. (Freiburg U.) ; Schluter, T. (Munich U.) ; Schmidt, A. (Erlangen - Nuremberg U.) ; Schmidt, K. (Freiburg U.) ; Schmieden, H. (Bonn U., HISKP) ; Schonning, K. (CERN) ; Schopferer, S. (Freiburg U.) ; Schott, M. (CERN) ; Shevchenko, O.Yu. (Dubna, JINR) ; Silva, L. (LIP, Lisbon) ; Sinha, L. (Matrivani Inst., Calcutta) ; Sirtl, S. (Freiburg U.) ; Slunecka, M. (Dubna, JINR) ; Sosio, S. (Turin U. ; INFN, Turin) ; Sozzi, F. (INFN, Trieste) ; Srnka, A. (Inst. Sci. Instruments, Brno) ; Steiger, L. (INFN, Trieste) ; Stolarski, M. (LIP, Lisbon) ; Sulc, M. (Liberec Tech. U.) ; Sulej, R. (Warsaw, Inst. Nucl. Studies) ; Suzuki, H. (Yamagata U. ; Chubu U.) ; Szabeleski, A. (Warsaw, Inst. Nucl. Studies) ; Szameitat, T. (Freiburg U.) ; Sznajder, P. (Warsaw, Inst. Nucl. Studies) ; Takekawa, S. (INFN, Turin) ; ter Wolbeek, J. (Freiburg U.) ; Tessaro, S. (INFN, Trieste) ; Tessarotto, F. (INFN, Trieste) ; Thibaud, F. (IRFU, SPhN, Saclay) ; Uhl, S. (Munich, Tech. U.) ; Uman, I. (Munich U.) ; Vandenbroucke, M. (IRFU, SPhN, Saclay) ; Virius, M. (Prague, Tech. U.) ; Vondra, J. (Prague, Tech. U.) ; Wang, L. (Ruhr U., Bochum) ; Weisrock, T. (Mainz U., Inst. Kernphys.) ; Wilfert, M. (Mainz U., Inst. Kernphys.) ; Windmolders, R. (Bonn U.) ; Wislicki, W. (Warsaw, Inst. Nucl. Studies) ; Wollny, H. (IRFU, SPhN, Saclay) ; Zaremba, K. (Warsaw U. of Tech.) ; Zavertyaev, M. (Lebedev Inst.) ; Zemlyanichkina, E. (Dubna, JINR) ; Ziembicki, M. (Warsaw U. of Tech.)

Publication 2014-09-07
Imprint 29 Jan 2014
Number of pages 8
Note Comments: 14 pages, 8 figures
14 pages, 8 figures
In: Phys. Lett. B 736 (2014) 124-131
DOI 10.1016/j.physletb.2014.06.080
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; COMPASS NA58
Free keywords QCD ; experimental results ; SIDIS ; transversity ; 2 hadrons asymmetries
Abstract A measurement of the azimuthal asymmetry in dihadron production in deep-inelastic scattering of muons on transversely polarised proton (NH$_{3}$) targets are presented. They provide independent access to the transversity distribution functions through the measurement of the Collins asymmetry in single hadron production. The data were taken in the year $2010$ with the COMPASS spectrometer using a $160\,\mbox{GeV}/c$ muon beam of the CERN SPS, increasing by a factor of about three the available statistics of the previously published data taken in the year $2007$. The measured sizeable asymmetry is in good agreement with the published data. An approximate equality of the Collins asymmetry and the dihadron asymmetry is observed, suggesting a common physical mechanism in the underlying fragmentation.
Copyright/License publication: © 2014-2025 The Author(s) (License: CC-BY-3.0), sponsored by SCOAP³
preprint: © 2014-2025 CERN (License: CC-BY-3.0)



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