Abstract
CMS collaboration is planning to upgrade the forward muon chamber during 2019–2020 to cope up with the High Luminosity LHC (HL-LHC) phase. In the HL-LHC phase the forward region, \(|\eta | \ge \) 1.5, of CMS detector will face extremely high particle rates in several tens of kHz/cm\(^2\) and hence it will affect the momentum and longevity of the muon detectors. In concern of above requirement, CMS collaboration is going to install the new large-size, rate-capable Triple Gas Electron Multiplier (GEM) detectors in the forward region of muon system. It will be installed in the GE1/1 region having eta 1.5 \(\le \eta \le \) 2.2 during LS2 of the LHC. For this the full-size CMS GEM prototype detectors were fabricated and tested under test beam at CERN SPS test beam facility. It was tested with two different gas mixtures Ar/CO\(_2\) (70/30) and Ar/CO\(_2\)/CF\(_4\) (40/15/45). In this paper the results of test beam has been summarized based on time resolution and efficiency.
Ram Krishna Sharma, Md. Naimuddin, Brian Dorney, Jeremie Alexandre Merlin, Archana Sharma, Marek Michal Gruchala, Priyanka Kumari and Ankita Mehta on behalf of the CMS-Muon Collaboration.
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Sharma, R.K. et al. (2018). Test Beam Study of Gas Electron Multiplier (GEM) Detectors for the Upgrade of CMS Endcap Muon System. In: Naimuddin, M. (eds) XXII DAE High Energy Physics Symposium . Springer Proceedings in Physics, vol 203. Springer, Cham. https://doi.org/10.1007/978-3-319-73171-1_40
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DOI: https://doi.org/10.1007/978-3-319-73171-1_40
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