论文标题
喷气电荷：EIC旋转不对称的风味棱镜
Jet Charge: A Flavor Prism for Spin Asymmetries at the EIC
论文作者
论文摘要
我们提出了可观察到的射流电荷是电子离子对撞机（EIC）的核子自旋程序中的新型风味结构探针。我们表明，射流电荷测量值可以显着提高自旋不对称对核中不同派对风味的敏感性。通过仅使用射流中的强子（pions或kaons）的子集构建射流电荷，可以进一步提高这种敏感性。例如，我们在EIC的背靠背电子喷射中使用Sivers的不对称性，以表明喷气电荷可以成为约束不同派对风味的Sivers功能的独特工具。
We propose the jet charge observable as a novel probe of flavor structure in the nucleon spin program at the Electron Ion Collider (EIC). We show that jet charge measurements can substantially enhance the sensitivity of spin asymmetries to different partonic flavors in the nucleon. This sensitivity can be further improved by constructing the jet charge using only a subset of hadron species (pions or kaons) in the jet. As an example, we use the Sivers asymmetry in back-to-back electron-jet production at the EIC to show that the jet charge can be a unique tool in constraining the Sivers function for different partonic flavors.
