Transverse target spin asymmetries in exclusive $\rho^0$ muoproduction
High Energy Physics - Experiment
2015-06-17 v2 Nuclear Experiment
Abstract
Exclusive production of mesons was studied at the COMPASS experiment by scattering 160 GeV/ muons off transversely polarised protons. Five single-spin and three double-spin azimuthal asymmetries were measured as a function of , , or . The asymmetry is found to be . 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.
Keywords
Cite
@article{arxiv.1310.1454,
title = {Transverse target spin asymmetries in exclusive $\rho^0$ muoproduction},
author = {C. Adolph and M. G. Alekseev and V. Yu. Alexakhin and Yu. Alexandrov and G. D. Alexeev and A. Amoroso and V. Andrieux and A. Austregesilo and B. Badellek and F. Balestra and J. Barth and G. Baum and Y. Bedfer and A. Berlin and J. Bernhard and R. Bertini and K. Bicker and J. Bieling and R. Birsa and J. Bisplinghoff and M. Boer and P. Bordalo and F. Bradamante and C. Braun and A. Bravar and A. Bressan and M. Buechele and E. Burtin and L. Capozza and M. Chiosso and S. U. Chung and A. Cicuttin and M. L. Crespo and S. Dalla Torre and S. S. Dasgupta and S. Dasgupta and O. Yu. Denisov and S. V. Donskov and N. Doshita and V. Duic and W. Duennweber and M. Dziewiecki and A. Efremov and C. Elia and P. D. Eversheim and W. Eyrich and M. Faessler and A. Ferrero and A. Filin and M. Finger and M. Finger and H. Fischer and C. Franco and N. du Fresne von Hohenesche and J. M. Friedrich and V. Frolov and R. Garfagnini and F. Gautheron and O. P. Gavrichtchouk and S. Gerassimov and R. Geyer and M. Giorgi and I. Gnesi and B. Gobbo and S. Goertz and S. Grabmueller and A. Grasso and B. Grube and R. Gushterski and A. Guskov and T. Guthoerl and F. Haas and D. von Harrach and D. Hahne and F. H. Heinsius and F. Herrmann and C. Hess and F. Hinterberger and Ch. Hoeppner and N. Horikawa and N. d'Hose and S. Huber and S. Ishimoto and Yu. Ivanshin and T. Iwata and R. Jahn and V. Jary and P. Jasinski and R. Joosten and E. Kabuss and D. Kang and B. Ketzer and G. V. Khaustov and Yu. A. Khokhlov and Yu. Kisselev and F. Klein and K. Klimaszewski and J. H. Koivuniemi and V. N. Kolosov and K. Kondo and K. Koenigsmann and I. Konorov and V. F. Konstantinov and A. M. Kotzinian and O. Kouznetsov and M. Kraemer and Z. V. Kroumchtein and N. Kuchinski and F. Kunne and K. Kurek and R. P. Kurjata and A. A. Lednev and A. Lehmann and S. Levorato and J. Lichtenstadt and A. Maggiora and A. Magnon and N. Makke and G. K. Mallot and C. Marchand and A. Martin and J. Marzec and J. Matousek and H. Matsuda and T. Matsuda and G. Meshcheryakov and W. Meyer and T. Michigami and Yu. V. Mikhailov and Y. Miyachi and A. Morreale and A. Nagaytsev and T. Nagel and F. Nerling and S. Neubert and D. Neyret and V. I. Nikolaenko and J. Novy and W. -D. Nowak and A. S. Nunes and A. G. Olshevsky and M. Ostrick and R. Panknin and D. Panzieri and B. Parsamyan and S. Paul and M. Pesek and G. Piragino and S. Platchkov and J. Pochodzalla and J. Polak and V. A. Polyakov and J. Pretz and M. Quaresma and C. Quintans and S. Ramos and G. Reicherz and E. Rocco and V. Rodionov and E. Rondio and N. S. Rossiyskaya and D. I. Ryabchikov and V. D. Samoylenko and A. Sandacz and M. G. Sapozhnikov and S. Sarkar and I. A. Savin and G. Sbrizzai and P. Schiavon and C. Schill and T. Schlueter and A. Schmidt and K. Schmidt and L. Schmitt and H. Schmieden and K. Schoenning and S. Schopferer and M. Schott and O. Yu. Shevchenko and L. Silva and L. Sinha and S. Sirtl and M. Slunecka and S. Sosio and F. Sozzi and A. Srnka and L. Steiger and M. Stolarski and M. Sulc and R. Sulej and H. Suzuki and P. Sznajder and S. Takekawa and J. Ter Wolbeek and S. Tessaro and F. Tessarotto and F. Thibaud and S. Uhl and I. Uman and M. Vandenbroucke and M. Virius and J. Vondra and L. Wang and T. Weisrock and M. Wilfert and R. Windmolders and W. Wislicki and H. Wollny and K. Zaremba and M. Zavertyaev and E. Zemlyanichkina and N. Zhuravlev and M. Ziembicki},
journal= {arXiv preprint arXiv:1310.1454},
year = {2015}
}
Comments
14 pages, two tables, 5 figures, bibliography updated