HL-LHC 的 Forward Physics Facility 及其与天体粒子物理的协同作用
The Forward Physics Facility at the HL-LHC and its Synergies with Astroparticle Physics
AI总结：
本文介绍 HL-LHC 的 FPF 拟建地下前向实验设施，并阐述其测量如何改进高能强子相互作用模型、降低 EAS 与多信使天体物理解读中的不确定性。
摘要：
高亮度大型强子对撞机（HL-LHC）的高能碰撞将沿束流碰撞轴产生巨大的粒子通量，而当前 LHC 实验无法进入这一区域。研究极前向区域中的多粒子产生对天体粒子物理尤为重要。高能宇宙线在大气中产生广延大气簇射（EAS），其由非微扰 QCD 区域内的强子–离子碰撞驱动。因此，理解前向区域中的高能强子相互作用，对于解释 EAS 数据、估计天体物理中微子搜索的背景以及其他应用至关重要。Forward Physics Facility（FPF）是一项在 HL-LHC 建造新地下洞室的提案，其中将部署多种极前向实验，用于探测当前 LHC 接收度之外的粒子。我们将概述 FPF 的当前计划，并强调其与天体粒子物理的协同作用。具体而言，我们将讨论 FPF 的测量将如何改进大气中高能相互作用的建模，从而帮助降低多信使天体物理中的相关不确定性。
英文摘要：
High-energy collisions at the high-luminosity Large Hadron Collider (HL-LHC) will generate a vast flux of particles along the beam collision axis, a region not accessible by current LHC experiments. The study of multi-particle production in the far-forward region is especially important for astroparticle physics. High-energy cosmic rays create extensive air showers (EAS) in the atmosphere, driven by hadron-ion collisions in the non-perturbative QCD regime. Therefore, understanding high-energy hadronic interactions in the forward region is crucial for interpreting EAS data and estimating backgrounds for searches of astrophysical neutrinos, among other applications. The Forward Physics Facility (FPF) is a proposal to construct a new underground cavern at the HL-LHC, hosting various far-forward experiments designed to detect particles outside the current LHC acceptance. We will outline the current plans for the FPF and highlight its synergies with astroparticle physics. Specifically, we will discuss how FPF measurements will enhance the modeling of high-energy interactions in the atmosphere, helping to reduce the associated uncertainties in multi-messenger astrophysics.
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