The project of a circular collider for electrons and positrons (FCC-ee) needs to be completed with a detection apparatus. The Innovative Detector for Electron–positron Accelerator (IDEA) experiment has been proposed to study the properties of heavy particles such as top, Z, W, and H with more precision. From the vertex outward, the apparatus is composed of a sophisticated tracker and a dual-readout electromagnetic calorimeter surrounded by a magnet, a dual-readout fiber calorimeter, and the muon system. The technology proposed for the muon system is the micro-Resistive WELL (μ-RWELL). The muon system asks for 400 μm space resolution to tag muons and long-lived particles. Another point in favor of this technology is its suitability for industrial transfer, which is fundamental for mass production to cover more than the 1500 m2 planned for the apparatus. This publication reports the standard 1D tracking performance of the μ-RWELL, including the dependence of spatial resolution on DLC resistivity and strip pitch. It also focuses on the R&D of different 2D readout layouts. All these studies have been conducted over several test beam campaigns performed at the CERN-SPS North Area during the last years.
The μ-RWELL technology for the muon system at the IDEA experiment
Di Fiore E.;Garzia I.;Melendi F. M.;
2026
Abstract
The project of a circular collider for electrons and positrons (FCC-ee) needs to be completed with a detection apparatus. The Innovative Detector for Electron–positron Accelerator (IDEA) experiment has been proposed to study the properties of heavy particles such as top, Z, W, and H with more precision. From the vertex outward, the apparatus is composed of a sophisticated tracker and a dual-readout electromagnetic calorimeter surrounded by a magnet, a dual-readout fiber calorimeter, and the muon system. The technology proposed for the muon system is the micro-Resistive WELL (μ-RWELL). The muon system asks for 400 μm space resolution to tag muons and long-lived particles. Another point in favor of this technology is its suitability for industrial transfer, which is fundamental for mass production to cover more than the 1500 m2 planned for the apparatus. This publication reports the standard 1D tracking performance of the μ-RWELL, including the dependence of spatial resolution on DLC resistivity and strip pitch. It also focuses on the R&D of different 2D readout layouts. All these studies have been conducted over several test beam campaigns performed at the CERN-SPS North Area during the last years.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
