Measurement of the Q^{2} Dependence of the Deuteron Spin Structure Function g_{1} and its Moments at Low Q^{2} with CLAS.
Measurement of the Q^{2} Dependence of the Deuteron Spin Structure Function g_{1} and its Moments at Low Q^{2} with CLAS.
复制标题
使用 CLAS 测量氘核自旋结构函数 g_{1} 及其低 Q^{2} 时刻的 Q^{2} 依赖性。
DOI：
10.1103/physrevlett.120.062501
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发表时间：
2018
影响因子：
8.6
通讯作者：
Adhikari KP
中科院分区：
文献类型：
--
作者：
Adhikari KP
我们测量了氘核在低能级下的自旋结构函数，其中量子cd可以用手性微扰理论来近似（）。数据覆盖共振区域，直到不变质量。首次精确地确定了广义Gerasimov-Drell-Hearn和、矩和自旋极化率的最小值，比以前的数据低约2.5倍。我们将它们与几个计算和模型进行比较。这些结果是该领域偏振观测的基准测量程序中的第一个。
We measured thespin structure function of the deuteron at low, where QCD can be approximated with chiral perturbation theory (). The data cover the resonance region, up to an invariant mass of. The generalized Gerasimov-Drell-Hearn sum, the momentand the spin polarizabilityare precisely determined down to a minimumoffor the first time, about 2.5 times lower than that of previous data. We compare them to severalcalculations and models. These results are the first in a program of benchmark measurements of polarization observables in thedomain.