Data di Pubblicazione:
2012
Abstract:
The transverse target spin azimuthal asymmetry in hard exclusive production of ρ0 mesons was measured at COMPASS by scattering 160 GeV/c muons off transversely polarised protons and deuterons. The measured asymmetry is sensitive to the nucleon helicity-flip generalised parton distributions E^q, which are related to the orbital angular momentum of quarks in the nucleon. The Q^2, x_Bj and squared transverse momentum (p^2_T) dependence of azimuthal asymmetry is presented in a wide kinematic range: 1 (GeV/c)^2 < Q^2 < 10 (GeV/c)^2, 0.003
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
COMPASS; polarized beam; POLARIZED TARGET
Elenco autori:
C. Adolph;M.G. Alekseev;V.Yu. Alexakhin;Yu. Alexandrov;G.D. Alexeev;A. Amoroso;A.A. Antonov;A. Austregesilo;B. Badełek;F. Balestra;J. Barth;G. Baum;Y. Bedfer;J. Bernhard;R. Bertini;M. Bettinelli;K. Bicker;J. Bieling;R. Birsa;J. Bisplinghoff;P. Bordalo;F. Bradamante;C. Braun;A. Bravar;A. Bressan;M. Büchele;E. Burtin;L. Capozza;M. Chiosso;S.U. Chung;A. Cicuttin;M.L. Crespo;S. Dalla Torre;S. Das;S.S. Dasgupta;S. Dasgupta;O.Yu. Denisov;L. Dhara;S.V. Donskov;N. Doshita;V. Duic;W. Dünnweber;M. Dziewiecki;A. Efremov;C. Elia;P.D. Eversheim;W. Eyrich;M. Faessler;A. Ferrero;A. Filin;M. Finger;M. Finger;H. Fischer;C. Franco;N. du Fresne von Hohenesche;J.M. Friedrich;V. Frolov;R. Garfagnini;F. Gautheron;O.P. Gavrichtchouk;S. Gerassimov;R. Geyer;M. Giorgi;I. Gnesi;B. Gobbo;S. Goertz;S. Grabmüller;A. Grasso;B. Grube;R. Gushterski;A. Guskov;T. Guthörl;F. Haas;D. von Harrach;F.H. Heinsius;F. Herrmann;C. Heß;F. Hinterberger;N. Horikawa;Ch. Höppner;N. dʼHose;S. Ishimoto;O. Ivanov;Yu. Ivanshin;T. Iwata;R. Jahn;V. Jary;P. Jasinski;G. Jegou;R. Joosten;E. Kabuß;D. Kang;B. Ketzer;G.V. Khaustov;Yu.A. Khokhlov;Yu. Kisselev;F. Klein;K. Klimaszewski;S. Koblitz;J.H. Koivuniemi;V.N. Kolosov;K. Kondo;K. Königsmann;I. Konorov;V.F. Konstantinov;A. Korzenev;A.M. Kotzinian;O. Kouznetsov;M. Krämer;Z.V. Kroumchtein;F. Kunne;K. Kurek;L. Lauser;A.A. Lednev;A. Lehmann;S. Levorato;J. Lichtenstadt;T. Liska;A. Maggiora;A. Magnon;N. Makke;G.K. Mallot;A. Mann;C. Marchand;A. Martin;J. Marzec;T. Matsuda;G. Meshcheryakov;W. Meyer;T. Michigami;Yu.V. Mikhailov;M.A. Moinester;A. Morreale;A. Mutter;A. Nagaytsev;T. Nagel;T. Negrini;F. Nerling;S. Neubert;D. Neyret;V.I. Nikolaenko;W.-D. Nowak;A.S. Nunes;A.G. Olshevsky;M. Ostrick;A. Padee;R. Panknin;D. Panzieri;B. Parsamyan;S. Paul;E. Perevalova;G. Pesaro;D.V. Peshekhonov;G. Piragino;S. Platchkov;J. Pochodzalla;J. Polak;V.A. Polyakov;J. Pretz;M. Quaresma;C. Quintans;J.-F. Rajotte;S. Ramos;V. Rapatsky;G. Reicherz;A. Richter;E. Rocco;E. Rondio;N.S. Rossiyskaya;D.I. Ryabchikov;V.D. Samoylenko;A. Sandacz;M.G. Sapozhnikov;S. Sarkar;I.A. Savin;G. Sbrizzai;P. Schiavon;C. Schill;T. Schlüter;K. Schmidt;L. Schmitt;K. Schönning;S. Schopferer;M. Schott;W. Schröder;O.Yu. Shevchenko;L. Silva;L. Sinha;A.N. Sissakian;M. Slunecka;G.I. Smirnov;S. Sosio;F. Sozzi;A. Srnka;L. Steiger;M. Stolarski;M. Sulc;R. Sulej;H. Suzuki;P. Sznajder;S. Takekawa;J. Ter Wolbeek;S. Tessaro;F. Tessarotto;L.G. Tkatchev;S. Uhl;I. Uman;M. Vandenbroucke;M. Virius;N.V. Vlassov;L. Wang;M. Wilfert;R. Windmolders;W. Wiślicki;H. Wollny;K. Zaremba;M. Zavertyaev;E. Zemlyanichkina;M. Ziembicki;N. Zhuravlev;A. Zvyagin
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