/ hep-ex arXiv:1310.1454


Transverse target spin asymmetries in exclusive $\rho^0$ muoproduction


Adolph, C (Erlangen - Nuremberg U.) ; Alekseev, M G (INFN, Trieste) ; Alexakhin, V Yu (Dubna, JINR) ; Alexandrov, Yu (Lebedev Inst.) ; Alexeev, G D (Dubna, JINR) ; Amoroso, A (INFN, Turin) ; Andrieux, V (IRFU, SPhN, Saclay) ; Austregesilo, A (CERN) ; Badelek, B (Warsaw U.) ; Balestra, F (INFN, Turin) ; Barth, J (Bonn U.) ; Baum, G (Bielefeld U.) ; Bedfer, Y (IRFU, SPhN, Saclay) ; Berlin, A (Ruhr U., Bochum) ; Bernhard, J (Mainz U., Inst. Kernphys.) ; Bertini, R (INFN, Turin) ; Bicker, K (CERN) ; Bieling, J (Bonn U.) ; Birsa, R (INFN, Trieste) ; Bisplinghoff, J (Bonn U.) ; Boer, M (IRFU, SPhN, Saclay) ; Bordalo, P (Lisbon, LIFEP) ; Bradamante, F (INFN, Trieste) ; Braun, C (Erlangen - Nuremberg U.) ; Bravar, A (INFN, Trieste) ; Bressan, A (INFN, Trieste) ; Büchele, M (Freiburg U.) ; Burtin, E (IRFU, SPhN, Saclay) ; Capozza, L (IRFU, SPhN, Saclay) ; Chiosso, M (INFN, Turin) ; Chung, S U (Munich, Tech. U.) ; Cicuttin, A (INFN, Trieste) ; Crespo, M L (INFN, Trieste) ; 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 (INFN, Trieste) ; Dünnweber, W (Munich U.) ; Dziewiecki, M (Warsaw U. of Tech.) ; Efremov, A (Dubna, JINR) ; Elia, C (INFN, Trieste) ; Eversheim, P D (Bonn U.) ; 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 (Lisbon, LIFEP) ; du Fresne von Hohenesche, N (Mainz U., Inst. Kernphys) ; Friedrich, J M (Munich, Tech. U.) ; Frolov, V (CERN) ; Garfagnini, R (INFN, Turin) ; Gautheron, F (Ruhr U., Bochum) ; Gavrichtchouk, O P (Dubna, JINR) ; Gerassimov, S (Lebedev Inst) ; Geyer, R (Munich U.) ; Giorgi, M (INFN, Trieste) ; Gnesi, I (INFN, Turin) ; Gobbo, B (INFN, Trieste) ; Goertz, S (Bonn U.) ; Grabmüller, S (Munich, Tech. U.) ; Grasso, A (INFN, Turin) ; Grube, B (Munich, Tech. U.) ; Gushterski, R (Dubna, JINR) ; Guskov, A (Dubna, JINR) ; Guthörl, T (Freiburg U.) ; Haas, F (Munich, Tech. U.) ; von Harrach, D (Mainz U., Inst. Kernphys.) ; Hahne, D (Bonn U.) ; Heinsius, F H (Freiburg U.) ; Herrmann, F (Freiburg U.) ; Hess, C (Ruhr U., Bochum) ; Hinterberger, F (Bonn U.) ; Höppner, Ch (Munich, Tech. U.) ; Horikawa, N (Nagoya U) ; d'Hose, N (IRFU, SPhN, Saclay) ; Huber, S (Munich, Tech. U.) ; Ishimoto, S (Yamagata U) ; Ivanshin, Yu (Dubna, JINR) ; Iwata, T (Yamagata U.) ; Jahn, R (Bonn U.) ; Jary, V (CTU, Prague) ; Jasinski, P (Mainz U., Inst. Kernphys.) ; Joosten, R (Bonn U.) ; 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) ; Kisselev, Yu (Ruhr U., Bochum) ; 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.) ; Königsmann, K (Freiburg U.) ; Konorov, I (Lebedev Inst) ; Konstantinov, V F (Serpukhov, IHEP) ; Kotzinian, A M (INFN, Turin) ; Kouznetsov, O (Dubna, JINR) ; Krämer, 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 (IRFU, SPhN, Saclay) ; Mallot, G K (CERN) ; Marchand, C (IRFU, SPhN, Saclay) ; Martin, A (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.) ; Morreale, A (IRFU, SPhN, Saclay) ; 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 (Charles U.) ; Nowak, W D (Freiburg U.) ; Nunes, A.S (Lisbon, LIFEP) ; Olshevsky, A G (Dubna, JINR) ; Ostrick, M (Mainz U., Inst. Kernphys.) ; Panknin, R (Bonn U.) ; Panzieri, D (Piemonte Orientale U., Alessandria) ; Parsamyan, B (INFN, Turin) ; Paul, S (Munich, Tech. U.) ; Pesek, M (Charles U.) ; Piragino, G (INFN, Turin) ; Platchkov, S (IRFU, SPhN, Saclay) ; Pochodzalla, J (Mainz U., Inst. Kernphys.) ; Polak, J (Liberec Tech. U) ; Polyakov, V A (Serpukhov, IHEP) ; Pretz, J (Bonn U) ; Quaresma, M (Lisbon, LIFEP) ; Quintans, C (Lisbon, LIFEP) ; Ramos, S (Lisbon, LIFEP) ; Reicherz, G (Ruhr U., Bochum) ; Rocco, E (CERN) ; Rodionov, V (Dubna, JINR) ; Rondio, E (Warsaw, Inst. Nucl. Studies) ; Rossiyskaya, N S (Dubna, JINR) ; Ryabchikov, D I (Serpukhov, IHEP) ; Samoylenko, V D (Serpukhov, IHEP) ; Sandacz, A (Warsaw, Inst. Nucl. Studies) ; Sapozhnikov, M G (Dubna, JINR) ; Sarkar, S (Matrivani Inst., Calcutta) ; Savin, I A (Dubna, JINR) ; Sbrizzai, G (INFN, Trieste) ; Schiavon, P (INFN, Trieste) ; Schill, C (Freiburg U.) ; Schlüter, T (Munich U.) ; Schmidt, A (Erlangen - Nuremberg U.) ; Schmidt, K (Freiburg U.) ; Schmitt, L (Munich, Tech. U) ; Schmïden, H (Bonn U.) ; Schönning, K (CERN) ; Schopferer, S (Freiburg U.) ; Schott, M (CERN) ; Shevchenko, O Yu (Dubna, JINR) ; Silva, L (Lisbon, LIFEP) ; Sinha, L (Matrivani Inst., Calcutta) ; Sirtl, S (Freiburg U.) ; Slunecka, M (Charles U.) ; Sosio, S (INFN, Turin) ; Sozzi, F (INFN, Trieste) ; Srnka, A (Inst. Sci. Instruments, Brno) ; Steiger, L (INFN, Trieste) ; Stolarski, M (Lisbon, LIFEP) ; Sulc, M (Liberec Tech. U.) ; Sulej, R (Warsaw, Inst. Nucl. Studies) ; Suzuki, H (Yamagata 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 (CTU, Prague) ; Vondra, J (CTU, Prague) ; 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) ; Zhuravlev, N (Dubna, JINR) ; Ziembicki, M (Warsaw U. of Tech.)

Pages: 14

Abstract: Exclusive production of $\rho^0$ 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 $Q^2$, $x_{Bj}$, or $p_{T}^{2}$. The $\sin \phi_S$ asymmetry is found to be $-0.019 \pm 0.008(stat.) \pm 0.003(syst.)$. 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.

Web-Page: http://inspirehep.net/record/1257385/files/fig2.png; http://inspirehep.net/record/1257385/files/fig3.png; http://inspirehep.net/record/1257385/files/fig4.png; http://inspirehep.net/record/1257385/files/fig5.png; http://inspirehep.net/record/1257385/files/arXiv:1310.1454.pdf


Note: 14 pages, two tables, 5 figures, bibliography updated

Total numbers of views: 2821
Numbers of unique views: 984
 Record created 2013-11-11, last modified 2014-01-30


External links:
Download fulltextFulltext
Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)