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arXiv 2308.09079hep-exastro-ph.HE
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高亮度大型强子对撞机前沿物理设施中的天体粒子物理学

Astroparticle Physics with the Forward Physics Facility at the High-Luminosity LHC

Dennis Soldin

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8 pages, 5 figures, presented at the 38th International Cosmic Ray Conference (ICRC2023)
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AI总结：

本文介绍HL-LHC的FPF远前向实验设施规划，说明其如何通过测量高能强子相互作用改进EAS建模并降低多信使天体物理观测的不确定性。

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，而现有LHC实验无法探测这些粒子。远前向区域中的多粒子产生对于天体粒子物理学尤其重要。高能宇宙线在大气中产生大型粒子级联，即广延大气簇射（EAS），其由QCD非微扰区中低动量转移下的强子—离子碰撞驱动。因此，理解前向区域的高能强子相互作用，对于解释EAS数据以及估算天体物理中微子搜索的背景至关重要。前沿物理设施（FPF）是一项在HL-LHC建造新地下洞室的提案，该洞室将容纳多种远前向实验，以探测处于现有LHC实验接收度之外的粒子。我们将介绍FPF计划的当前现状，并重点说明其与天体粒子物理学的协同作用。特别地，我们将讨论FPF的测量将如何改进大气中高能强子相互作用的建模，从而降低多信使天体物理学背景下相关测量的不确定性。

英文摘要：

High-energy collisions at the High-Luminosity Large Hadron Collider (HL-LHC) will produce an enormous flux of particles along the beam collision axis that is not accessible by existing LHC experiments. Multi-particle production in the far-forward region is of particular interest for astroparticle physics. High-energy cosmic rays produce large particle cascades in the atmosphere, extensive air showers (EAS), which are driven by hadron-ion collisions under low momentum transfer in the non-perturbative regime of QCD. Thus, the understanding of high-energy hadronic interactions in the forward region is crucial for the interpretation of EAS data and for the estimation of backgrounds for searches of astrophysical neutrinos. The Forward Physics Facility (FPF) is a proposal to build a new underground cavern at the HL-LHC which will host a variety of far-forward experiments to detect particles outside the acceptance of the existing LHC experiments. We will present the current status of plans for the FPF and highlight the synergies with astroparticle physics. In particular, we will discuss how measurements at the FPF will improve the modeling of high-energy hadronic interactions in the atmosphere and thereby reduce the associated uncertainties of measurements in the context of multi-messenger astrophysics.

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