Speaker
Description
This contribution presents the development of a hadronic calorimeter made of resistive Micro Pattern Gas Detectors (MPGD) designed for an experiment at a multi-TeV Muon collider.
The Muon collider has been proposed as a powerful tool to explore the Standard Model, aiming for precise Higgs boson coupling measurements and searches for new physics at the TeV scale, requiring accurate event reconstruction and particle identification. The Particle Flow Algorithm (PFA), which integrates data from various subsystems, is well-suited for this task.
An MPGD-based calorimeter is ideal for PFA thanks to the high-granular readout capabilities (O(cm2)) and particularly suitable for the Muon Collider background conditions, thanks to its radiation-hard technology and high rate capabilities (up to 10 MHz/cm2). Furthermore, resistive MPGDs, such as resistive Micromegas and µ-RWELL, offer excellent spatial resolution, operational stability (discharge quenching), and uniformity, making them well-suited for calorimetry.
The results of the characterization studies performed with muon beam at CERN SPS on three MPGD technologies, resistive MicroMegas, µ-RWELL, and RPWELL, are presented by showing their efficiency, response uniformity and space and timing resolution. Additionally, we show the energy response of an HCAL cell prototype consisting of eight layers (~1 λ) of alternating stainless steel and MPGD detectors tested with pion beams of energy up to 10 GeV.
