Spin asymmetry A1(d) and the spin-dependent structure function g1(d) of the deuteron at low values of x and Q**2
Spin asymmetry A1(d) and the spin-dependent structure function g1(d) of the deuteron at low values of x and Q**2
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DOI：
10.1016/j.physletb.2007.02.034
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发表时间：
2007-01
影响因子：
4.4
通讯作者：
V. Alexakhin;Y. Alexandrov;G. Alexeev;A. Amoroso;B. Badelek;F. Balestra;J. Ball;G. Baum;Y. Bedfer;C. Bernet;R. Bertini;R. Birsa;J. Bisplinghoff;P. Bordalo;F. Bradamante;A. Bravar;A. Bressan;G. Brona;É. Burtin;M. Bussa;A. Chapiro;A. Cicuttin;M. Colantoni;S. Costa;M. Crespo;N. d'Hose;S. Torre;S. Dasgupta;R. D. Masi;O. Denisov;L. Dhara;V. D. Kavka;A. Dinkelbach;S. Donskov;V. Dorofeev;N. Doshita;V. Duic;W. Dünnweber;P. Eversheim;W. Eyrich;M. Fabro;M. Faessler;V. Falaleev;A. Ferrero;L. Ferrero;M. Finger;H. Fischer;J. Franz;J. Friedrich;V. Frolov;R. Garfagnini;F. Gautheron;O. Gavrichtchouk;S. Gerassimov;R. Geyer;M. Giorgi;B. Gobbo;S. Goertz;A. Gorin;O. A. Grajek;A. Grasso;B. Grube;J. Hannappel;D. Harrach;T. Hasegawa;J. Heckmann;S. Hedicke;F. Heinsius;R. Hermann;C. Hess;F. Hinterberger;M. Hodenberg;N. Horikawa;S. Horikawa;C. Ilgner;A. Ioukaev;S. Ishimoto;O. Ivanov;T. Iwata;R. Jahn;A. Janata;R. Joosten;N. Jouravlev;E. Kabuß;D. Kang;B. Ketzer;G. Khaustov;Y. Khokhlov;N. Khomutov;Y. Kisselev;F. Klein;S. Koblitz;J. Koivuniemi;V. Kolosov;E. Komissarov;K. Kondo;K. Konigsmann;I. Konorov;V. Konstantinov;A. S. Korentchenko;A. Korzenev;A. Kotzinian;N. A. Koutchinski;N. Kravchuk;Z. Kroumchtein;R. Kuhn;F. Kunne;K. Kurek;M. E. Ladygin;M. Lamanna;J. Goff;J. Lichtenstadt;T. Liska;I. Ludwig;A. Maggiora;M. Maggiora;A. Magnon;G. Mallot;C. Marchand;J. Marroncle;Adam Martin;J. Marzec;T. Matsuda;A. Maximov;W. Meyer;A. Mielech;Y. Mikhailov;M. Moinester;O. Nähle;J. Nassalski;S. Neliba;D. Neyret;V. Nikolaenko;A. Nozdrin;V. Obraztsov;A. Olshevsky;M. Ostrick;A. Padée;P. Pagano;S. Panebianco;D. Panzieri;S. Paul;D. Peshekhonov;V. Peshekhonov;G. Piragino;S. Platchkov;J. Pochodzalla;V. Polyakov;A. Popov;J. Pretz;S. Procureur;C. Quintans;S. Ramos;G. Reicherz;A. Rozhdestvensky;E. Rondio;A. Sadovski;V. Samoylenko;A. Sandacz;M. Sapozhnikov;I. Savin;P. Schiavon;C. Schill;L. Schmitt;O. Shevchenko;A. Shishkin;H. Siebert;L. Sinha;A. Sissakian;M. Slunecka;G. Smirnov;F. Sozzi;V. Sugonyaev;A. Srnka;F. Stinzing;M. Stolarski;M. Sulc;R. Sulej;N. Takabayashi;V. V. Tchalishev-V.;F. Tessarotto;A. Teufel;L. Tkatchev;M. Virius;N. Vlassov;R. Webb;E. Weise;Q. Weitzel;R. Windmolders;St. Wirth-;W. Wiślicki;K. Zaremba;J. Zhao;R. Ziegler;A. Zvyagin
中科院分区：
文献类型：
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作者：
V. Alexakhin;Y. Alexandrov;G. Alexeev;A. Amoroso;B. Badelek;F. Balestra;J. Ball;G. Baum;Y. Bedfer;C. Bernet;R. Bertini;R. Birsa;J. Bisplinghoff;P. Bordalo;F. Bradamante;A. Bravar;A. Bressan;G. Brona;É. Burtin;M. Bussa;A. Chapiro;A. Cicuttin;M. Colantoni;S. Costa;M. Crespo;N. d'Hose;S. Torre;S. Dasgupta;R. D. Masi;O. Denisov;L. Dhara;V. D. Kavka;A. Dinkelbach;S. Donskov;V. Dorofeev;N. Doshita;V. Duic;W. Dünnweber;P. Eversheim;W. Eyrich;M. Fabro;M. Faessler;V. Falaleev;A. Ferrero;L. Ferrero;M. Finger;H. Fischer;J. Franz;J. Friedrich;V. Frolov;R. Garfagnini;F. Gautheron;O. Gavrichtchouk;S. Gerassimov;R. Geyer;M. Giorgi;B. Gobbo;S. Goertz;A. Gorin;O. A. Grajek;A. Grasso;B. Grube;J. Hannappel;D. Harrach;T. Hasegawa;J. Heckmann;S. Hedicke;F. Heinsius;R. Hermann;C. Hess;F. Hinterberger;M. Hodenberg;N. Horikawa;S. Horikawa;C. Ilgner;A. Ioukaev;S. Ishimoto;O. Ivanov;T. Iwata;R. Jahn;A. Janata;R. Joosten;N. Jouravlev;E. Kabuß;D. Kang;B. Ketzer;G. Khaustov;Y. Khokhlov;N. Khomutov;Y. Kisselev;F. Klein;S. Koblitz;J. Koivuniemi;V. Kolosov;E. Komissarov;K. Kondo;K. Konigsmann;I. Konorov;V. Konstantinov;A. S. Korentchenko;A. Korzenev;A. Kotzinian;N. A. Koutchinski;N. Kravchuk;Z. Kroumchtein;R. Kuhn;F. Kunne;K. Kurek;M. E. Ladygin;M. Lamanna;J. Goff;J. Lichtenstadt;T. Liska;I. Ludwig;A. Maggiora;M. Maggiora;A. Magnon;G. Mallot;C. Marchand;J. Marroncle;Adam Martin;J. Marzec;T. Matsuda;A. Maximov;W. Meyer;A. Mielech;Y. Mikhailov;M. Moinester;O. Nähle;J. Nassalski;S. Neliba;D. Neyret;V. Nikolaenko;A. Nozdrin;V. Obraztsov;A. Olshevsky;M. Ostrick;A. Padée;P. Pagano;S. Panebianco;D. Panzieri;S. Paul;D. Peshekhonov;V. Peshekhonov;G. Piragino;S. Platchkov;J. Pochodzalla;V. Polyakov;A. Popov;J. Pretz;S. Procureur;C. Quintans;S. Ramos;G. Reicherz;A. Rozhdestvensky;E. Rondio;A. Sadovski;V. Samoylenko;A. Sandacz;M. Sapozhnikov;I. Savin;P. Schiavon;C. Schill;L. Schmitt;O. Shevchenko;A. Shishkin;H. Siebert;L. Sinha;A. Sissakian;M. Slunecka;G. Smirnov;F. Sozzi;V. Sugonyaev;A. Srnka;F. Stinzing;M. Stolarski;M. Sulc;R. Sulej;N. Takabayashi;V. V. Tchalishev-V.;F. Tessarotto;A. Teufel;L. Tkatchev;M. Virius;N. Vlassov;R. Webb;E. Weise;Q. Weitzel;R. Windmolders;St. Wirth-;W. Wiślicki;K. Zaremba;J. Zhao;R. Ziegler;A. Zvyagin
我们根据2002年和2003年欧洲核子研究中心COMPASS实验收集的数据，对氘核自旋相关结构函数g1dat Q2<1 (GeV/c)2和4×10−5<x<2.5×10−2的氘核纵向自旋不对称性A1d和4×10−5<x<2.5×10−2进行了精确测量。统计精度比以前在该区域的测量精度提高了10倍。发现测得的A1d和g1d在x的整个范围内都与零一致。
We present a precise measurement of the deuteron longitudinal spin asymmetry A1dand of the deuteron spin-dependent structure function g1dat Q2<1 (GeV/c)2and 4×10−5<x<2.5×10−2based on the data collected by the COMPASS experiment at CERN during the years 2002 and 2003. The statistical precision is tenfold better than that of the previous measurement in this region. The measured A1dand g1dare found to be consistent with zero in the whole range of x.