从电子离子对撞机角度探讨格点QCD中的强子结构
Hadron Structure from lattice QCD in the context of the Electron-Ion Collider
AI总结:
本文综述了格点QCD在强子结构方面的最新进展,重点讨论了π子、K子和核子的结构结果,为电子离子对撞机的科学议程提供理论支持。
摘要:
利用格点量子色动力学(QCD)计算强子结构近年来取得了显著进展。可以以高精度获得电荷、形式因子和低阶 Mellin 矩,通用部分子分布现在可以通过直接计算或从矩中重构得到,横动量依赖分布则可通过直接格点计算获取。这些量提供了对强子内部结构的详细互补见解。这些理论发展高度相关于电子离子对撞机(EIC)及其他设施的实验计划。本文回顾了最相关的格点QCD结果,特别强调π子、K子和核子的结构,以支持EIC的科学议程。
英文摘要:
Hadron structure calculations using lattice Quantum Chromodynamics (QCD) have advanced significantly in recent years. Results for charges, form factors, and lower Mellin moments can be obtained to high precision, generalized parton distributions can now be computed either directly or reconstructed from moments, and transverse-momentum-dependent distributions can be accessed through direct lattice calculations. Together, these quantities provide detailed and complementary insights into the internal structure of hadrons. These theoretical developments are highly relevant to the experimental program of the Electron-Ion Collider (EIC) and of other facilities. We review the most pertinent lattice QCD results for hadron structure that inform the EIC scientific agenda, with particular emphasis on the pion, kaon, and nucleon.
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