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arXiv 1504.08217hep-phhep-ex
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大动量转移时三圈非单重态味对结构函数g_1(x,Q^2)的贡献

The 3-Loop Non-Singlet Heavy Flavor Contributions to the Structure Function g_1(x,Q^2) at Large Momentum Transfer

A. Behring, J. Blümlein, A. De Freitas, A. von Manteuffel, C. Schneider

摘要:

我们计算了大量的味道非单线态威尔逊系数的重味贡献的极化结构函数$g_1(x,Q^2)$在渐近区域$Q^2 \gg m^2$ 3圈阶量子色动力学在一般值的梅林变量$N$和动量分数$x$,并推导出重味修正的Bjorken求和规则。数值结果的魅力夸克的贡献。给出了在twist-2近似下结构函数$g_2(x,Q^2)$的结果。

英文摘要:

We calculate the massive flavor non-singlet Wilson coefficient for the heavy flavor contributions to the polarized structure function $g_1(x,Q^2)$ in the asymptotic region $Q^2 \gg m^2$ to 3-loop order in Quantum Chromodynamics at general values of the Mellin variable $N$ and the momentum fraction $x$, and derive heavy flavor corrections to the Bjorken sum-rule. Numerical results are presented for the charm quark contribution. Results on the structure function $g_2(x,Q^2)$ in the twist-2 approximation are also given.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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