Exclusive rho^0 muoproduction on transversely polarised protons and deuterons
Exclusive rho^0 muoproduction on transversely polarised protons and deuterons
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DOI：
10.1016/j.nuclphysb.2012.07.025
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发表时间：
2012-07
期刊：
影响因子：
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通讯作者：
C. Adolph;M. Alekseev;V. Alexakhin;Y. Alexandrov;G. Alexeev;A. Amoroso;A. Antonov;A. Austregesilo;B. Badelek;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. Buchele;É. Burtin;L. Capozza;M. Chiosso;S. Chung;A. Cicuttin;M. Crespo;S. Torre;S. Das;S. Dasgupta;S. Dasgupta;O. Denisov;L. Dhara;S. Donskov;N. Doshita;V. Duic;W. Dunnweber;M. Dziewiecki;A. Efremov;C. Elia;P. Eversheim;W. Eyrich;M. Faessler;A. Ferrero;A. Filin;M. Finger;M. Finger;H. Fischer;C. Franco;N. D. F. V. Hohenesche;J. Friedrich;V. Frolov;R. Garfagnini;F. Gautheron;O. Gavrichtchouk;S. Gerassimov;R. Geyer;M. Giorgi;I. Gnesi;B. Gobbo;S. Goertz;S. Grabmuller;A. Grasso;B. Grube;R. Gushterski;A. Guskov;T. Guthorl;F. Haas;D. Harrach;F. Heinsius;F. Herrmann;C. Hess;F. Hinterberger;N. Horikawa;C. Hoppner;N. d'Hose;S. Ishimoto;O. Ivanov;Y. Ivanshin;T. Iwata;R. Jahn;V. Jarý;P. Jasiński;G. Jégou;R. Joosten;E. Kabuß;D. Kang;B. Ketzer;G. Khaustov;Y. Khokhlov;Y. Kisselev;F. Klein;K. Klimaszewski;S. Koblitz;J. Koivuniemi;V. Kolosov;K. Kondo;K. Konigsmann;I. Konorov;V. Konstantinov;A. Korzenev;A. Kotzinian;O. Kouznetsov;M. Kramer;Z. Kroumchtein;F. Kunne;K. Kurek;L. Lauser;A. Lednev;A. Lehmann;S. Levorato;J. Lichtenstadt;T. Liska;A. Maggiora;A. Magnon;N. Makke;G. Mallot;A. Mann;C. Marchand;A. Martin;J. Marzec;T. Matsuda;G. Meshcheryakov;W. Meyer;T. Michigami;Y. Mikhailov;M. Moinester;A. Morreale;A. Mutter;A. Nagaytsev;T. Nagel;T. Negrini;F. Nerling;S. Neubert;D. Neyret;V. Nikolaenko;W. Nowak;A. S. Nunes;A. Olshevsky;M. Ostrick;A. Padée;R. Panknin;D. Panzieri;B. Parsamyan;S. Paul;E. Perevalova;G. Pesaro;D. Peshekhonov;G. Piragino;S. Platchkov;J. Pochodzalla;J. Polák;V. Polyakov;J. Pretz;M. Quaresma;C. Quintans;J. Rajotte;S. Ramos;V. Rapatsky;G. Reicherz;A. Richter;E. Rocco;E. Rondio;N. Rossiyskaya;D. Ryabchikov;V. Samoylenko;A. Sandacz;M. Sapozhnikov;S. Sarkar;I. Savin;G. Sbrizzai;P. Schiavon;C. Schill;T. Schluter;K. Schmidt;L. Schmitt;K. Schonning;S. Schopferer;M. Schott;W. Schroder;O. Shevchenko;L. Silva;L. Sinha;A. Sissakian;M. Slunecka;G. Smirnov;S. Sosio;F. Sozzi;A. Srnka;L. Steiger;M. Stolarski;M. Sulc;R. Sulej;H. Suzuki;P. Sznajder;S. Takekawa;J. Wolbeek;S. Tessaro;F. Tessarotto;L. Tkatchev;S. Uhl;I. Uman;M. Vandenbroucke;M. Virius;N. Vlassov;L. Wang;M. Wilfert;R. Windmolders;W. Wi'slicki;H. Wollny;K. Zaremba;M. Zavertyaev;E. Zemlyanichkina;M. Ziembicki;N. Zhuravlev;A. Zvyagin
中科院分区：
文献类型：
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作者：
C. Adolph;M. Alekseev;V. Alexakhin;Y. Alexandrov;G. Alexeev;A. Amoroso;A. Antonov;A. Austregesilo;B. Badelek;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. Buchele;É. Burtin;L. Capozza;M. Chiosso;S. Chung;A. Cicuttin;M. Crespo;S. Torre;S. Das;S. Dasgupta;S. Dasgupta;O. Denisov;L. Dhara;S. Donskov;N. Doshita;V. Duic;W. Dunnweber;M. Dziewiecki;A. Efremov;C. Elia;P. Eversheim;W. Eyrich;M. Faessler;A. Ferrero;A. Filin;M. Finger;M. Finger;H. Fischer;C. Franco;N. D. F. V. Hohenesche;J. Friedrich;V. Frolov;R. Garfagnini;F. Gautheron;O. Gavrichtchouk;S. Gerassimov;R. Geyer;M. Giorgi;I. Gnesi;B. Gobbo;S. Goertz;S. Grabmuller;A. Grasso;B. Grube;R. Gushterski;A. Guskov;T. Guthorl;F. Haas;D. Harrach;F. Heinsius;F. Herrmann;C. Hess;F. Hinterberger;N. Horikawa;C. Hoppner;N. d'Hose;S. Ishimoto;O. Ivanov;Y. Ivanshin;T. Iwata;R. Jahn;V. Jarý;P. Jasiński;G. Jégou;R. Joosten;E. Kabuß;D. Kang;B. Ketzer;G. Khaustov;Y. Khokhlov;Y. Kisselev;F. Klein;K. Klimaszewski;S. Koblitz;J. Koivuniemi;V. Kolosov;K. Kondo;K. Konigsmann;I. Konorov;V. Konstantinov;A. Korzenev;A. Kotzinian;O. Kouznetsov;M. Kramer;Z. Kroumchtein;F. Kunne;K. Kurek;L. Lauser;A. Lednev;A. Lehmann;S. Levorato;J. Lichtenstadt;T. Liska;A. Maggiora;A. Magnon;N. Makke;G. Mallot;A. Mann;C. Marchand;A. Martin;J. Marzec;T. Matsuda;G. Meshcheryakov;W. Meyer;T. Michigami;Y. Mikhailov;M. Moinester;A. Morreale;A. Mutter;A. Nagaytsev;T. Nagel;T. Negrini;F. Nerling;S. Neubert;D. Neyret;V. Nikolaenko;W. Nowak;A. S. Nunes;A. Olshevsky;M. Ostrick;A. Padée;R. Panknin;D. Panzieri;B. Parsamyan;S. Paul;E. Perevalova;G. Pesaro;D. Peshekhonov;G. Piragino;S. Platchkov;J. Pochodzalla;J. Polák;V. Polyakov;J. Pretz;M. Quaresma;C. Quintans;J. Rajotte;S. Ramos;V. Rapatsky;G. Reicherz;A. Richter;E. Rocco;E. Rondio;N. Rossiyskaya;D. Ryabchikov;V. Samoylenko;A. Sandacz;M. Sapozhnikov;S. Sarkar;I. Savin;G. Sbrizzai;P. Schiavon;C. Schill;T. Schluter;K. Schmidt;L. Schmitt;K. Schonning;S. Schopferer;M. Schott;W. Schroder;O. Shevchenko;L. Silva;L. Sinha;A. Sissakian;M. Slunecka;G. Smirnov;S. Sosio;F. Sozzi;A. Srnka;L. Steiger;M. Stolarski;M. Sulc;R. Sulej;H. Suzuki;P. Sznajder;S. Takekawa;J. Wolbeek;S. Tessaro;F. Tessarotto;L. Tkatchev;S. Uhl;I. Uman;M. Vandenbroucke;M. Virius;N. Vlassov;L. Wang;M. Wilfert;R. Windmolders;W. Wi'slicki;H. Wollny;K. Zaremba;M. Zavertyaev;E. Zemlyanichkina;M. Ziembicki;N. Zhuravlev;A. Zvyagin
在COMPASS上，通过从横向极化的质子和氘核上散射160 GeV/c μ子，测量了ρ 0介子硬排斥产生中的横向靶自旋方位角不对称性[公式：见正文]。测量的不对称性是敏感的核子螺旋翻转广义部分子分布方程，这是有关的夸克在核子中的轨道角动量。Q2、xBj和pT 2的依赖关系在很宽的运动学范围内呈现：对于质子，1（GeV/c）2<Q2<10（GeV/c）2，0.003<xBj<0.3和0.05（GeV/c）2<pT 2 <0.5（GeV/c）2;对于氘核，0.10（GeV/c）2<pT 2 <0.5（GeV/c）2。氘的结果是第一次获得。测量的不对称性是小的，在整个运动学范围内的质子和氘，这是一致的理论解释，从GPD的Eu和Ed近似取消的贡献。
The transverse target spin azimuthal asymmetry [Formula: see text] in hard exclusive production of ρ0mesons 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 Eq, which are related to the orbital angular momentum of quarks in the nucleon. The Q2, xBjand pT2dependence of [Formula: see text] is presented in a wide kinematic range: 1(GeV/c)2<Q2<10(GeV/c)2, 0.003<xBj<0.3 and 0.05(GeV/c)2<pT2<0.5(GeV/c)2for protons or 0.10(GeV/c)2<pT2<0.5(GeV/c)2for deuterons. Results for deuterons are obtained for the first time. The measured asymmetry is small in the whole kinematic range for both protons and deuterons, which is consistent with the theoretical interpretation that contributions from GPDs Euand Edapproximately cancel.