论文标题
缩放和较高的旋转核心振幅中的扭曲
Scaling and higher twist in the nucleon Compton amplitude
论文作者
论文摘要
Hadron的党结构在大量的高能量和核物理实验中起着重要作用。它还基于对强子结构的理论理解。 Lattice QCD的最新发展为可靠地研究第一原则研究党的结构提供了新的机会。在这里，我们报告使用Feynman-Hellmann定理来研究非物理区域的前向康普顿振幅。我们演示了该幅度如何对HADRONIC非弹性结构函数提供直接约束。外部动量转移的使用使我们能够研究$ q^2 $的演变，以探索渐近缩放的发作并揭示派对结构中的扭转效果。
The partonic structure of hadrons plays an important role in a vast array of high-energy and nuclear physics experiments. It also underpins the theoretical understanding of hadron structure. Recent developments in lattice QCD offer new opportunities for reliably studying partonic structure from first principles. Here we report on the use of the Feynman-Hellmann theorem to study the forward Compton amplitude in the unphysical region. We demonstrate how this amplitude provides direct constraint on hadronic inelastic structure functions. The use of external momentum transfer allows us to study the $Q^2$ evolution to explore the onset of asymptotic scaling and reveal higher-twist effects in partonic structure.
