Measurement of the spin structure of the deuteron in the DIS region
Measurement of the spin structure of the deuteron in the DIS region
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DOI：
10.1016/j.physletb.2005.03.025
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发表时间：
2005-01
影响因子：
4.4
通讯作者：
The Compass Collaboration E.S. Ageev;E. al.
中科院分区：
文献类型：
--
作者：
The Compass Collaboration E.S. Ageev;E. al.
在1<Q2<100 gev2和0.004<x<0.7范围内，给出了氘核纵向自旋不对称性a1和自旋相关结构函数g1d1的新测量方法。这些数据是由欧洲核子研究中心的COMPASS实验获得的，实验使用了160 GeV的极化μ子束和一个大的极化6lid靶。结果与前人的实验结果基本一致，在0.004<x<0.03范围内显著提高了统计精度。
We present a new measurement of the longitudinal spin asymmetry A1dand the spin-dependent structure function g1dof the deuteron in the range 1<Q2<100 GeV2and 0.004<x<0.7. The data were obtained by the COMPASS experiment at CERN using a 160 GeV polarised muon beam and a large polarised6LiD target. The results are in agreement with those from previous experiments and improve considerably the statistical accuracy in the region 0.004<x<0.03.