Double spin asymmetry in exclusive ρ 0 muoproduction at COMPASS

M. Alekseev,V.Yu. Alexakhin,Yu. Alexandrov,G.D. Alexeev,A. Amoroso,A. Arbuzov,B. Badełek,F. Balestra,J. Ball,G. Baum,J. Barth, Y. Bedfer,C. Bernet,R. Bertini, M. Bettinelli,R. Birsa, J. Bisplinghoff,P. Bordalo,F. Bradamante,A. Bravar, A. Bressan,G. Brona,E. Burtin,M.P. Bussa, A. Chapiro, M. Chiosso,A. Cicuttin,M. Colantoni, S. Costa,M.L. Crespo, N. d’Hose, S. Dalla Torre,S. Das,S.S. Dasgupta,R. De Masi,N. Dedek,O.Yu. Denisov,L. Dhara,V. Diaz,A.M. Dinkelbach, S.V. Donskov,V.A. Dorofeev,N. Doshita, V. Duic, W. Dünnweber, P.D. Eversheim, W. Eyrich, M. Fabro,M. Faessler,V. Falaleev,A. Ferrero, L. Ferrero,M. Finger,M. Finger jr.,H. Fischer,C. Franco,J. Franz,J.M. Friedrich,V. Frolov, R. Garfagnini,F. Gautheron,O.P. Gavrichtchouk, R. Gazda,S. Gerassimov,R. Geyer,M. Giorgi, B. Gobbo,S. Goertz,A.M. Gorin, S. Grabmüller, O.A. Grajek, A. Grasso,B. Grube, R. Gushterski,A. Guskov,F. Haas, J. Hannappel,D. von Harrach,T. Hasegawa, J. Heckmann,S. Hedicke,F.H. Heinsius, R. Hermann,C. Heß,F. Hinterberger,M. von Hodenberg,N. Horikawa,S. Horikawa, C. Ilgner, A.I. Ioukaev,S. Ishimoto,O. Ivanov,Yu. Ivanshin,T. Iwata,R. Jahn,A. Janata,P. Jasinski,R. Joosten, N.I. Jouravlev, 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, E.V. Komissarov,K. Kondo, K. Königsmann,I. Konorov,V.F. Konstantinov,A.S. Korentchenko,A. Korzenev,A.M. Kotzinian, N.A. Koutchinski,O. Kouznetsov,N.P. Kravchuk,A. Kral, Z.V. Kroumchtein,R. Kuhn, F. Kunne, K. Kurek,M.E. Ladygin,M. Lamanna,J.M. Le Goff, A.A. Lednev,A. Lehmann,J. Lichtenstadt,T. Liska,I. Ludwig,A. Maggiora,M. Maggiora, A. Magnon,G.K. Mallot,A. Mann,C. Marchand, J. Marroncle,A. Martin,J. Marzec, F. Massmann,T. Matsuda, A.N. Maximov,W. Meyer, A. Mielech,Yu.V. Mikhailov,M.A. Moinester,A. Mutter, O. Nähle, A. Nagaytsev,T. Nagel,J. Nassalski, S. Neliba, F. Nerling,S. Neubert,D.P. Neyret, V.I. Nikolaenko, K. Nikolaev,A.G. Olshevsky,M. Ostrick,A. Padee,P. Pagano,S. Panebianco, R. Panknin, D. Panzieri,S. Paul, B. Pawlukiewicz-Kaminska,D.V. Peshekhonov,V.D. Peshekhonov,G. Piragino,S. Platchkov, J. Pochodzalla, J. Polak,V.A. Polyakov,J. Pretz,S. Procureur,C. Quintans,J.-F. Rajotte, V. Rapatsky,S. Ramos, G. Reicherz,A. Richter, F. Robinet,E. Rocco,E. Rondio,A.M. Rozhdestvensky, D.I. Ryabchikov,V.D. Samoylenko,A. Sandacz,H. Santos, M.G. Sapozhnikov,S. Sarkar, I.A. Savin, P. Schiavon,C. Schill,L. Schmitt, P. Schönmeier, W. Schröder,O.Yu. Shevchenko, H.-W. Siebert,L. Silva,L. Sinha, A.N. Sissakian,M. Slunecka, G.I. Smirnov, S. Sosio, F. Sozzi,V.P. Sugonyaev,A. Srnka, F. Stinzing,M. Stolarski,M. Sulc,R. Sulej,N. Takabayashi, V.V. Tchalishev,S. Tessaro,F. Tessarotto,A. Teufel, L.G. Tkatchev,G. Venugopal,M. Virius, N.V. Vlassov,A. Vossen,R. Webb,E. Weise,Q. Weitzel, R. Windmolders,S. Wirth,W. Wiślicki,K. Zaremba,M. Zavertyaev, E. Zemlyanichkina,J. Zhao,R. Ziegler,A. Zvyagin

European Physical Journal C(2007)

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摘要
The longitudinal double spin asymmetry A 1 ρ for exclusive leptoproduction of ρ 0 mesons, μ+N→μ+N+ρ, is studied using the COMPASS 2002 and 2003 data. The measured reaction is incoherent exclusive ρ 0 production on polarised deuterons. The Q 2 and x dependence of A 1 ρ is presented in a wide kinematical range, 3×10 -3 更多
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关键词
Vector Meson,Dynamic Nuclear Polarisation,Kinematical Range,HERMES Collaboration,Deuteron Target
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