Transverse target spin asymmetries in exclusive ρ0 muoproduction

Adolph, C. (Universität Erlangen–Nürnberg, Physikalisches Institut, Erlangen, 91054, Germany) ; Akhunzyanov, R. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Alekseev, M.G. (Trieste Section of INFN, Trieste, 34127, Italy) ; Alexakhin, V.Yu. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Alexandrov, Yu. (Lebedev Physical Institute, Moscow, 119991, Russia) ; Alexeev, G.D. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Amoroso, A. (University of Turin, Department of Physics, Turin, 10125, Italy) (Torino Section of INFN, Turin, 10125, Italy) ; Andrieux, V. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Anosov, V. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Austregesilo, A. (CERN, Geneva 23, 1211, Switzerland) (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Badełek, B. (University of Warsaw, Faculty of Physics, Warsaw, 00-681, Poland) ; Balestra, F. (University of Turin, Department of Physics, Turin, 10125, Italy) (Torino Section of INFN, Turin, 10125, Italy) ; Barth, J. (Universität Bonn, Physikalisches Institut, Bonn, 53115, Germany) ; Baum, G. (Universität Bielefeld, Fakultät für Physik, Bielefeld, 33501, Germany) ; Beck, R. (Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, Bonn, 53115, Germany) ; Bedfer, Y. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Berlin, A. (Universität Bochum, Institut für Experimentalphysik, Bochum, 44780, Germany) ; Bernhard, J. (Universität Mainz, Institut für Kernphysik, Mainz, 55099, Germany) ; Bertini, R. (University of Turin, Department of Physics, Turin, 10125, Italy) (Torino Section of INFN, Turin, 10125, Italy) ; Bicker, K. (CERN, Geneva 23, 1211, Switzerland) (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Bieling, J. (Universität Bonn, Physikalisches Institut, Bonn, 53115, Germany) ; Birsa, R. (Trieste Section of INFN, Trieste, 34127, Italy) ; Bisplinghoff, J. (Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, Bonn, 53115, Germany) ; Bodlak, M. (Charles University in Prague, Faculty of Mathematics and Physics, Prague, 18000, Czech Republic) ; Boer, M. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Bordalo, P. (LIP, Lisbon, 1000-149, Portugal) ; Bradamante, F. (University of Trieste, Department of Physics, Trieste, 34127, Italy) (CERN, Geneva 23, 1211, Switzerland) ; Braun, C. (Universität Erlangen–Nürnberg, Physikalisches Institut, Erlangen, 91054, Germany) ; Bravar, A. (Trieste Section of INFN, Trieste, 34127, Italy) ; Bressan, A. (University of Trieste, Department of Physics, Trieste, 34127, Italy) (Trieste Section of INFN, Trieste, 34127, Italy) ; Büchele, M. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Burtin, E. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Capozza, L. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Chiosso, M. (University of Turin, Department of Physics, Turin, 10125, Italy) (Torino Section of INFN, Turin, 10125, Italy) ; Chung, S.U. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Cicuttin, A. (Abdus Salam ICTP, Trieste, 34151, Italy) (Trieste Section of INFN, Trieste, 34127, Italy) ; Crespo, M.L. (Abdus Salam ICTP, Trieste, 34151, Italy) (Trieste Section of INFN, Trieste, 34127, Italy) ; Curiel, Q. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Dalla Torre, S. (Trieste Section of INFN, Trieste, 34127, Italy) ; Dasgupta, S.S. (Matrivani Institute of Experimental Research & Education, Calcutta, 700 030, India) ; Dasgupta, S. (Trieste Section of INFN, Trieste, 34127, Italy) ; Denisov, O.Yu. (Torino Section of INFN, Turin, 10125, Italy) ; Donskov, S.V. (State Research Center of the Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia) ; Doshita, N. (Yamagata University, Japan, Yamagata, 992-8510) ; Duic, V. (University of Trieste, Department of Physics, Trieste, 34127, Italy) ; Dünnweber, W. (Ludwig-Maximilians-Universität München, Department für Physik, Munich, 80799, Germany) ; Dziewiecki, M. (Warsaw University of Technology, Institute of Radioelectronics, Warsaw, 00-665, Poland) ; Efremov, A. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Elia, C. (University of Trieste, Department of Physics, Trieste, 34127, Italy) (Trieste Section of INFN, Trieste, 34127, Italy) ; Eversheim, P.D. (Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, Bonn, 53115, Germany) ; Eyrich, W. (Universität Erlangen–Nürnberg, Physikalisches Institut, Erlangen, 91054, Germany) ; Faessler, M. (Ludwig-Maximilians-Universität München, Department für Physik, Munich, 80799, Germany) ; Ferrero, A. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Filin, A. (State Research Center of the Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia) ; Finger, M. (Charles University in Prague, Faculty of Mathematics and Physics, Prague, 18000, Czech Republic) ; Finger, M. (Charles University in Prague, Faculty of Mathematics and Physics, Prague, 18000, Czech Republic) ; Fischer, H. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Franco, C. (LIP, Lisbon, 1000-149, Portugal) ; du Fresne von Hohenesche, N. (Universität Mainz, Institut für Kernphysik, Mainz, 55099, Germany) (CERN, Geneva 23, 1211, Switzerland) ; Friedrich, J.M. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Frolov, V. (CERN, Geneva 23, 1211, Switzerland) ; Garfagnini, R. (University of Turin, Department of Physics, Turin, 10125, Italy) (Torino Section of INFN, Turin, 10125, Italy) ; Gautheron, F. (Universität Bochum, Institut für Experimentalphysik, Bochum, 44780, Germany) ; Gavrichtchouk, O.P. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Gerassimov, S. (Lebedev Physical Institute, Moscow, 119991, Russia) (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Geyer, R. (Ludwig-Maximilians-Universität München, Department für Physik, Munich, 80799, Germany) ; Giorgi, M. (University of Trieste, Department of Physics, Trieste, 34127, Italy) (Trieste Section of INFN, Trieste, 34127, Italy) ; Gnesi, I. (University of Turin, Department of Physics, Turin, 10125, Italy) (Torino Section of INFN, Turin, 10125, Italy) ; Gobbo, B. (Trieste Section of INFN, Trieste, 34127, Italy) ; Goertz, S. (Universität Bonn, Physikalisches Institut, Bonn, 53115, Germany) ; Gorzellik, M. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Grabmüller, S. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Grasso, A. (University of Turin, Department of Physics, Turin, 10125, Italy) (Torino Section of INFN, Turin, 10125, Italy) ; Grube, B. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Gushterski, R. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Guskov, A. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Guthörl, T. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Haas, F. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; von Harrach, D. (Universität Mainz, Institut für Kernphysik, Mainz, 55099, Germany) ; Hahne, D. (Universität Bonn, Physikalisches Institut, Bonn, 53115, Germany) ; Hashimoto, R. (Yamagata University, Japan, Yamagata, 992-8510) ; Heinsius, F.H. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Herrmann, F. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Heß, C. (Universität Bochum, Institut für Experimentalphysik, Bochum, 44780, Germany) ; Hinterberger, F. (Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, Bonn, 53115, Germany) ; Höppner, Ch. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Horikawa, N. (Nagoya University, Japan, Nagoya, 464) ; d'Hose, N. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Huber, S. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Ishimoto, S. (Yamagata University, Japan, Yamagata, 992-8510) ; Ivanov, A. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Ivanshin, Yu. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Iwata, T. (Yamagata University, Japan, Yamagata, 992-8510) ; Jahn, R. (Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, Bonn, 53115, Germany) ; Jary, V. (Czech Technical University in Prague, Prague, 16636, Czech Republic) ; Jasinski, P. (Universität Mainz, Institut für Kernphysik, Mainz, 55099, Germany) ; Joerg, P. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Joosten, R. (Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, Bonn, 53115, Germany) ; Kabuß, E. (Universität Mainz, Institut für Kernphysik, Mainz, 55099, Germany) ; Kang, D. (Universität Mainz, Institut für Kernphysik, Mainz, 55099, Germany) ; Ketzer, B. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Khaustov, G.V. (State Research Center of the Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia) ; Khokhlov, Yu.A. (State Research Center of the Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia) ; Kisselev, Yu. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Klein, F. (Universität Bonn, Physikalisches Institut, Bonn, 53115, Germany) ; Klimaszewski, K. (National Centre for Nuclear Research, Warsaw, 00-681, Poland) ; Koivuniemi, J.H. (Universität Bochum, Institut für Experimentalphysik, Bochum, 44780, Germany) ; Kolosov, V.N. (State Research Center of the Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia) ; Kondo, K. (Yamagata University, Japan, Yamagata, 992-8510) ; Königsmann, K. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Konorov, I. (Lebedev Physical Institute, Moscow, 119991, Russia) (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Konstantinov, V.F. (State Research Center of the Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia) ; Kotzinian, A.M. (University of Turin, Department of Physics, Turin, 10125, Italy) (Torino Section of INFN, Turin, 10125, Italy) ; Kouznetsov, O. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Kral, Z. (Czech Technical University in Prague, Prague, 16636, Czech Republic) ; Krämer, M. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Kroumchtein, Z.V. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Kuchinski, N. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Kunne, F. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Kurek, K. (National Centre for Nuclear Research, Warsaw, 00-681, Poland) ; Kurjata, R.P. (Warsaw University of Technology, Institute of Radioelectronics, Warsaw, 00-665, Poland) ; Lednev, A.A. (State Research Center of the Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia) ; Lehmann, A. (Universität Erlangen–Nürnberg, Physikalisches Institut, Erlangen, 91054, Germany) ; Levorato, S. (Trieste Section of INFN, Trieste, 34127, Italy) ; Lichtenstadt, J. (Tel Aviv University, School of Physics and Astronomy, Tel Aviv, 69978, Israel) ; Maggiora, A. (Torino Section of INFN, Turin, 10125, Italy) ; Magnon, A. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Makke, N. (University of Trieste, Department of Physics, Trieste, 34127, Italy) (Trieste Section of INFN, Trieste, 34127, Italy) ; Mallot, G.K. (CERN, Geneva 23, 1211, Switzerland) ; Marchand, C. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Martin, A. (University of Trieste, Department of Physics, Trieste, 34127, Italy) (Trieste Section of INFN, Trieste, 34127, Italy) ; Marzec, J. (Warsaw University of Technology, Institute of Radioelectronics, Warsaw, 00-665, Poland) ; Matousek, J. (Charles University in Prague, Faculty of Mathematics and Physics, Prague, 18000, Czech Republic) ; Matsuda, H. (Yamagata University, Japan, Yamagata, 992-8510) ; Matsuda, T. (University of Miyazaki, Japan, Miyazaki, 889-2192) ; Meshcheryakov, G. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Meyer, W. (Universität Bochum, Institut für Experimentalphysik, Bochum, 44780, Germany) ; Michigami, T. (Yamagata University, Japan, Yamagata, 992-8510) ; Mikhailov, Yu.V. (State Research Center of the Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia) ; Miyachi, Y. (Yamagata University, Japan, Yamagata, 992-8510) ; Nagaytsev, A. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Nagel, T. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Nerling, F. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Neubert, S. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Neyret, D. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Nikolaenko, V.I. (State Research Center of the Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia) ; Novy, J. (Czech Technical University in Prague, Prague, 16636, Czech Republic) ; Nowak, W.-D. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Nunes, A.S. (LIP, Lisbon, 1000-149, Portugal) ; Orlov, I. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Olshevsky, A.G. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Ostrick, M. (Universität Mainz, Institut für Kernphysik, Mainz, 55099, Germany) ; Panknin, R. (Universität Bonn, Physikalisches Institut, Bonn, 53115, Germany) ; Panzieri, D. (University of Eastern Piedmont, Alessandria, 15100, Italy) (Torino Section of INFN, Turin, 10125, Italy) ; Parsamyan, B. (University of Turin, Department of Physics, Turin, 10125, Italy) (Torino Section of INFN, Turin, 10125, Italy) ; Paul, S. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Pesek, M. (Charles University in Prague, Faculty of Mathematics and Physics, Prague, 18000, Czech Republic) ; Peshekhonov, D. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Piragino, G. (University of Turin, Department of Physics, Turin, 10125, Italy) (Torino Section of INFN, Turin, 10125, Italy) ; Platchkov, S. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Pochodzalla, J. (Universität Mainz, Institut für Kernphysik, Mainz, 55099, Germany) ; Polak, J. (Technical University in Liberec, Liberec, 46117, Czech Republic) (Trieste Section of INFN, Trieste, 34127, Italy) ; Polyakov, V.A. (State Research Center of the Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia) ; Pretz, J. (Universität Bonn, Physikalisches Institut, Bonn, 53115, Germany) ; Quaresma, M. (LIP, Lisbon, 1000-149, Portugal) ; Quintans, C. (LIP, Lisbon, 1000-149, Portugal) ; Ramos, S. (LIP, Lisbon, 1000-149, Portugal) ; Reicherz, G. (Universität Bochum, Institut für Experimentalphysik, Bochum, 44780, Germany) ; Rocco, E. (CERN, Geneva 23, 1211, Switzerland) ; Rodionov, V. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Rondio, E. (National Centre for Nuclear Research, Warsaw, 00-681, Poland) ; Rossiyskaya, N.S. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Ryabchikov, D.I. (State Research Center of the Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia) ; Samoylenko, V.D. (State Research Center of the Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia) ; Sandacz, A. (National Centre for Nuclear Research, Warsaw, 00-681, Poland) ; Sapozhnikov, M.G. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Sarkar, S. (Matrivani Institute of Experimental Research & Education, Calcutta, 700 030, India) ; Savin, I.A. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Sbrizzai, G. (University of Trieste, Department of Physics, Trieste, 34127, Italy) (Trieste Section of INFN, Trieste, 34127, Italy) ; Schiavon, P. (University of Trieste, Department of Physics, Trieste, 34127, Italy) (Trieste Section of INFN, Trieste, 34127, Italy) ; Schill, C. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Schlüter, T. (Ludwig-Maximilians-Universität München, Department für Physik, Munich, 80799, Germany) ; Schmidt, A. (Universität Erlangen–Nürnberg, Physikalisches Institut, Erlangen, 91054, Germany) ; Schmidt, K. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Schmitt, L. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Schmïden, H. (Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, Bonn, 53115, Germany) ; Schönning, K. (CERN, Geneva 23, 1211, Switzerland) ; Schopferer, S. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Schott, M. (CERN, Geneva 23, 1211, Switzerland) ; Shevchenko, O.Yu. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Silva, L. (LIP, Lisbon, 1000-149, Portugal) ; Sinha, L. (Matrivani Institute of Experimental Research & Education, Calcutta, 700 030, India) ; Sirtl, S. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Slunecka, M. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Sosio, S. (University of Turin, Department of Physics, Turin, 10125, Italy) (Torino Section of INFN, Turin, 10125, Italy) ; Sozzi, F. (Trieste Section of INFN, Trieste, 34127, Italy) ; Srnka, A. (Institute of Scientific Instruments, AS CR, Brno, 61264, Czech Republic) ; Steiger, L. (Trieste Section of INFN, Trieste, 34127, Italy) ; Stolarski, M. (LIP, Lisbon, 1000-149, Portugal) ; Sulc, M. (Technical University in Liberec, Liberec, 46117, Czech Republic) ; Sulej, R. (National Centre for Nuclear Research, Warsaw, 00-681, Poland) ; Suzuki, H. (Yamagata University, Japan, Yamagata, 992-8510) ; Szabelski, A. (National Centre for Nuclear Research, Warsaw, 00-681, Poland) ; Szameitat, T. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Sznajder, P. (National Centre for Nuclear Research, Warsaw, 00-681, Poland) ; Takekawa, S. (Torino Section of INFN, Turin, 10125, Italy) ; Ter Wolbeek, J. (Universität Freiburg, Physikalisches Institut, Freiburg, 79104, Germany) ; Tessaro, S. (Trieste Section of INFN, Trieste, 34127, Italy) ; Tessarotto, F. (Trieste Section of INFN, Trieste, 34127, Italy) ; Thibaud, F. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Uhl, S. (Technische Universität München, Physik Department, Garching, 85748, Germany) ; Uman, I. (Ludwig-Maximilians-Universität München, Department für Physik, Munich, 80799, Germany) ; Vandenbroucke, M. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Virius, M. (Czech Technical University in Prague, Prague, 16636, Czech Republic) ; Vondra, J. (Czech Technical University in Prague, Prague, 16636, Czech Republic) ; Wang, L. (Universität Bochum, Institut für Experimentalphysik, Bochum, 44780, Germany) ; Weisrock, T. (Universität Mainz, Institut für Kernphysik, Mainz, 55099, Germany) ; Wilfert, M. (Universität Mainz, Institut für Kernphysik, Mainz, 55099, Germany) ; Windmolders, R. (Universität Bonn, Physikalisches Institut, Bonn, 53115, Germany) ; Wiślicki, W. (National Centre for Nuclear Research, Warsaw, 00-681, Poland) ; Wollny, H. (CEA IRFU/SPhN Saclay, Gif-sur-Yvette, 91191, France) ; Zaremba, K. (Warsaw University of Technology, Institute of Radioelectronics, Warsaw, 00-665, Poland) ; Zavertyaev, M. (Lebedev Physical Institute, Moscow, 119991, Russia) ; Zemlyanichkina, E. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Zhuravlev, N. (Joint Institute for Nuclear Research, Moscow Region, Dubna, 141980, Russia) ; Ziembicki, M. (Warsaw University of Technology, Institute of Radioelectronics, Warsaw, 00-665, Poland)

14 February 2014

Abstract: Exclusive production of ρ0 mesons was studied at the COMPASS experiment by scattering 160 GeV/c muons off transversely polarised protons. Five single-spin and three double-spin azimuthal asymmetries were measured as a function of Q2 , xBj , or pT2 . The sinϕS asymmetry is found to be −0.019±0.008(stat.)±0.003(syst.) . All other asymmetries are also found to be of small magnitude and consistent with zero within experimental uncertainties. Very recent calculations using a GPD-based model agree well with the present results. The data is interpreted as evidence for the existence of chiral-odd, transverse generalized parton distributions.


Published in: Physics letters B 731 (2014) 19-26
Published by: Elsevier
DOI: 10.1016/j.physletb.2014.02.005
License: CC-BY-3.0



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