Measurement of the SMC muon beam polarisation using the asymmetry in the elastic scattering off polarised electrons
Measurement of the SMC muon beam polarisation using the asymmetry in the elastic scattering off polarised electrons
复制标题
利用偏振电子弹性散射的不对称性测量 SMC μ子束偏振
DOI：
10.1016/s0168-9002(99)01017-7
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
Jing Zhao
中科院分区：
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作者：
D. Adams;B. Adeva;T. Akdogan;E. Arik;A. Arvidson;B. Badelek;G. Bardin;G. Baum;Per Berglund;L. Betev;R. Birsa;P. Björkholm;B. Bonner;N. D. Botton;M. Boutemeur;F. Bradamante;A. Bravar;A. Bressan;S. Bültmann;É. Burtin;C. Cavata;M. Clocchiatti;D. Crabb;J. Cranshaw;T. Çuhadar;S. Torre;R. Dantzig;B. Derro;A. Deshpande;S. Dhawan;C. Dulya;A. Dyring;S. Eichblatt;J. Faivre;D. Fasching;F. Feinstein;C. Fernández;S. Forthmann;B. Frois;A. Gallas;J. A. Garzón;L. Gatignon;T. Gaussiran;H. Gilly;M. Giorgi;E. Goeler;S. Goertz;I. Golutvin;G. Gracia;N. Groot;M. Perdekamp;K. Haft;D. Harrach;T. Hasegawa;P. Hautle;N. Hayashi;C. Heusch;N. Horikawa;V. Hughes;G. Igo;S. Ishimoto;T. Iwata;E. Kabuß;T. Kageya;A. Karev;H. Kessler;T. Ketel;J. Kiryluk;I. Kiryushin;A. Kishi;Y. Kisselev;L. Klostermann;D. Kramer;V. Krivokhijine;W. Kröger;V. Kukhtin;K. Kurek;J. Kyynäräinen;M. Lamanna;U. Landgraf;J. Goff;F. Lehár;A. Lesquen;J. Lichtenstadt;T. Lindqvist;M. Litmaath;M. Lowe;A. Magnon;G. Mallot;F. Marie;Adam Martin;J. Martino;T. Matsuda;B. Mayes;J. Mccarthy;K. Medved;W. Meyer;G. Middelkoop;David Miller;Y. Miyachi;K. Mori;J. Moromisato;A. Nagaitsev;J. Nassalski;L. Naumann;T. Niinikoski;J. Oberski;A. Ogawa;C. Ozben;H. Pereira;F. Perrot;D. Peshekhonov;R. Piegaia;L. Pinsky;S. Platchkov;M. Pló;D. Pose;H. Postma;J. Pretz;T. Pussieux;G. Rädel;A. Rijllart;G. Reicherz;J. Roberts;S. Rock;Matias Rodriguez;E. Rondio;L. Ropelewski;I. Sabo;J. Saborido;A. Sandacz;I. Savin;P. Schiavon;A. Schiller;K. Schüler;R. Seitz;Y. Semertzidis;S. Sergeev;P. Shanahan;E. Sichtermann;F. Simeoni;G. Smirnov;A. Staude;A. Steinmetz;U. Stiegler;H. Stuhrmann;M. Szleper;F. Tessarotto;D. Thers;W. Tlaczala;A. Tripet;G. Unel;M. Velasco;J. Vogt;R. Voss;C. Whitten;R. Windmolders;R. Willumeit;W. Wiślicki;A. Witzmann;J. Ylöstalo;A. Zanetti;K. Zaremba;N. Zamiatin;Jing Zhao
在CERN SPS的SMC实验中，建立了一个μ子束偏振计，束流能量为100和190 GeV。从弹性散射的非对称性的铁磁目标，其磁化强度是周期性逆转的极化电子的光束偏振。在μ子能量为100和190 GeV时，测得的极化为Pμ=-0.80 ±0.03（统计）±0.02（系统）Pμ=−0.797±0.011（stat.）±0.012（系统），分别这些结果同意使用的衰变正电子能谱的形状分析的光束偏振的测量。
A muon beam polarimeter was built for the SMC experiment at the CERN SPS, for beam energies of 100 and 190GeV. The beam polarisation is determined from the asymmetry in the elastic scattering off the polarised electrons of a ferromagnetic target whose magnetisation is periodically reversed. At muon energies of 100 and 190GeV the measured polarisation is Pμ=−0.80±0.03 (stat.)±0.02 (syst.) and Pμ=−0.797±0.011 (stat.)±0.012 (syst.), respectively. These results agree with measurements of the beam polarisation using a shape analysis of the decay positron energy spectrum.
N.Horikawa 和 SMC：“来自深非弹性 μ 子散射的氘核自旋相关结构函数 g1(x)” Phys.Lett.B。
DOI：
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