The Multi-TeV Muon Collider will allow significant advancement in particle physics and in the understanding of its Standard Model for the era after the High-Luminosity LHC. The Muon Collider physics program involves precise Higgs boson sector measurements and TeV-scale new physics exploration. These goals demand accurate full-event reconstruction. The Particle Flow algorithm, which utilizes tracking, calorimeter, and muon detectors, is ideal for identifying and precisely estimating particle momenta/energies and can accomplish this task. Tracking detectors measure charged particle momenta, while calorimeters provide energy measurements for photons and neutral hadrons. Therefore, combining an exceptional tracking system with high-granularity calorimeters is essential. A major challenge is discerning μμ collision products from beam-induced-background, due to muon decay. To address this, an innovative hadronic calorimeter (HCAL) using Micro Pattern Gas Detectors (MPGDs) is proposed. MPGDs provide robust technology for high radiation and ensure precise spatial measurements. Dedicated studies are needed to assess and optimize the performance of an MPGD-based HCAL, including the development of medium-scale prototypes for performance measurements. This article describes the studies for a hadronic calorimeter based on MPGDs, relying on advanced technologies such as μ-rwell, resistive MicroMegas, and RPWELL. To assess the performance of MPGD detectors, a test beam was conducted in July 2023 at the Super Proton Synchrotron at CERN. This test beam aimed to evaluate the performance of MPGD detectors with 1×1 cm² pad readout under beam irradiation. Preliminary results from this test are presented.

中文翻译：

---

在未来的 μ 子对撞机实验中，基于 MPGD 的 HCAL 测试光束中 MPGD 原型的初步结果

多 TeV Mu 子对撞机将在粒子物理学和高亮度大型强子对撞机之后时代的标准模型的理解方面取得重大进展。 Mu 子对撞机物理计划涉及精确的希格斯玻色子扇区测量和 TeV 规模的新物理探索。这些目标需要准确的全事件重建。粒子流算法利用跟踪、量热计和 μ 子探测器，非常适合识别和精确估计粒子动量/能量，并且可以完成此任务。跟踪探测器测量带电粒子动量，而热量计提供光子和中性强子的能量测量。因此，将卓越的跟踪系统与高粒度热量计相结合至关重要。一个主要的挑战是辨别μμ由于μ子衰变，来自光束诱导背景的碰撞产物。为了解决这个问题，提出了一种使用微模式气体探测器（MPGD）的创新强子量热仪（HCAL）。 MPGD 为高辐射提供了强大的技术，并确保精确的空间测量。需要专门的研究来评估和优化基于 MPGD 的 HCAL 的性能，包括开发用于性能测量的中等规模原型。本文介绍了基于 MPGD 的强子量热仪的研究，依赖于以下先进技术μ-rwell、电阻式 MicroMegas 和 RPWELL。为了评估 MPGD 探测器的性能，2023 年 7 月在欧洲核子研究中心的超级质子同步加速器进行了测试光束。该测试光束旨在评估光束照射下具有 1×1 cm ²垫读数的 MPGD 探测器的性能。给出了该测试的初步结果。