Stranger Than Fiction: The Strangeness Radius and Magnetic Moment of the Nucleon
Stranger Than Fiction: The Strangeness Radius and Magnetic Moment of the Nucleon
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DOI：
10.1016/0370-2693(89)91171-4
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发表时间：
1989-10
影响因子：
4.4
通讯作者：
R. Jaffe
中科院分区：
文献类型：
--
作者：
R. Jaffe
用色散理论拟合核子的等谱形状因子，结合θ-ω混合的标准处理和对核子形状因子的渐近行为（在大q ~ 2时）的一些温和假设，估计了算符r ~ 2s <$s <$（x）x ~ 2s（x）和μs <$1 2 x× s γs的核子矩阵元.结果表明核子中存在着显著的奇夸克含量。
The nucleon matrix elements of the operators r2s≡s†(x)x2s(x) and μs≡ 1 2 x× s γs are estimated using dispersion theory fits to the nucleon isoscalar form factor, together with a standard treatment of θ-ω mixing and some mild assumptions on the asymptotic behavior (at large q2) of nucleon form factors. The results indicate a significant strange quark content in the nucleon.