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The High Luminosity LHC phase includes an upgrade to the muon stations for the CMS Experiment. CMS trigger and muon identification performance will be crucial, and it is, therefore, necessary to install new GEM stations to extend acceptance…

The Resistive Plate Chambers (RPCs) are employed in the CMS experiment at the LHC as dedicated trigger system both in the barrel and in the endcap. This note presents results of the radiation background measurements performed with the 2011…

Instrumentation and Detectors · Physics 2019-08-13 Silvia Costantini

The Large Hadron Collider (LHC) at CERN will undergo an upgrade in order to increase its luminosity to $7.5 \times 10^{34}$ cm$^{-2}$s$^{-1}$. The increased luminosity during this High-Luminosity running phase (HL-LHC), starting around…

Instrumentation and Detectors · Physics 2023-09-04 The Tracker Group of the CMS Collaboration

With the increases in the LHC instantaneous luminosity, maintaining effective triggering and avoiding dead time will become especially challenging. As the sensitivity of many physics studies, depends critically on the ability to maintain…

Instrumentation and Detectors · Physics 2013-10-09 A. Castaneda

This review article describes the performance of the magnetic field measuring and monitoring systems for the Compact Muon Solenoid (CMS) detector. To cross-check the magnetic flux distribution obtained with the CMS magnet model, four…

The measurement of the magnetic field in the tracking volume inside the superconducting coil of the Compact Muon Solenoid (CMS) detector under construction at CERN is done with a fieldmapper designed and produced at Fermilab. The…

The Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) is designed to study a wide range of high energy physics phenomena. It employs a large all-silicon tracker within a 3.8 T magnetic solenoid, which allows precise…

Instrumentation and Detectors · Physics 2019-10-29 Thomas James

Fabrication of devices in industrial plants often includes undergoing quality assurance tests or tests that seek to determine some attributes or capacities of the device. For instance, in testing refrigeration compressors, we want to find…

Other Computer Science · Computer Science 2024-02-29 Eric Aislan Antonelo , Carlos Alberto Flesch , Filipe Schmitz

There is strong theoretical motivation for the study of events with 2 same-sign leptons, jets, and missing transverse energy (MET) at the Large Hadron Collider (LHC). There are many compelling models, for instance, supersymmetry and extra…

High Energy Physics - Experiment · Physics 2015-05-14 Ronald Remington

The Compact Muon Solenoid (CMS) calorimeter regional trigger system is designed to detect signatures of isolated and non-isolated electrons/photons, jets, ?-leptons, and missing and total transverse energy using a deadtimeless pipelined…

High Energy Physics - Experiment · Physics 2007-05-23 P. Chumney , S. Dasu , J. Lackey , M. Jaworski , P. Robl , W. H. Smith

The modular multilevel converter (MMC) is a topology that consists of a high number of capacitors, and degradation of capacitors can lead to converter malfunction, limiting the overall system lifetime. Condition monitoring methods can be…

Signal Processing · Electrical Eng. & Systems 2024-04-23 Shuyu Ou , Mahyar Hassanifar , Martin Votava , Marius Langwasser , Marco Liserre , Ariya Sangwongwanich , Subham Sahoo , Frede Blaabjerg

Multi-gap Resistive Plate Chamber(MRPC) is a widely used timing detector with a typical time resolution of about 60 ps. This makes MRPC an optimal choice for the time of flight(ToF) system in many large physics experiments. The prior work…

Instrumentation and Detectors · Physics 2019-09-04 Fuyue Wang , Dong Han , Yi Wang , Yancheng Yu , Baohong Guo , Yuanjing Li

Small-diameter muon drift tube (sMDT) chambers are a cost-effective technology for high-precision muon tracking. The rate capability of the sMDT chambers has been extensively tested at the Gamma Irradiation Facility at CERN in view of…

Instrumentation and Detectors · Physics 2016-11-15 Oliver Kortner , Hubert Kroha , Felix Müller , Sebastian Nowak , Robert Richter

A measurement is presented of the flux ratio of positive and negative muons from cosmic ray interactions in the atmosphere, using data collected by the CMS detector at ground level and in the underground experimental cavern. The excellent…

High Energy Physics - Experiment · Physics 2011-04-22 Lars Sonnenschein

The MuCap experiment at the Paul Scherrer Institute performed a high-precision measurement of the rate of the basic electroweak process of nuclear muon capture by the proton, $\mu^- + p \rightarrow n + \nu_\mu$. The experimental approach…

We discuss a CMS eXtension for Studying Energetic Neutrinos (CMS-XSEN). Neutrinos at the LHC are abundant and have unique features: their energies reach out to the TeV range, and the contribution of the {\tau} flavour is sizeable. The…

Instrumentation and Detectors · Physics 2018-04-13 S. Buontempo , G. M. Dallavalle , G. De Lellis , D. Lazic , F. L. Navarria

Measurements from particle timing detectors are often affected by the time walk effect caused by statistical fluctuations in the charge deposited by passing particles. The constant fraction discriminator (CFD) algorithm is frequently used…

Instrumentation and Detectors · Physics 2024-03-19 Mateusz Kocot , Krzysztof Misan , Valentina Avati , Edoardo Bossini , Leszek Grzanka , Nicola Minafra

The High Luminosity upgrade of the CERN Large Hadron Collider (HL-LHC) requires new high-radiation tolerant silicon pixel sensors for the innermost part of the tracking detector in the CMS experiment. The innermost layer of the tracker,…

High Energy Physics - Experiment · Physics 2025-02-11 Clara Lasaosa

Throughout the year 2011, the Large Hadron Collider (LHC) has operated with an instantaneous luminosity that has risen continually to around 4x10^33cm-2 s-1. With this prodigious high-energy proton collisions rate, efficient triggering on…

Instrumentation and Detectors · Physics 2015-06-04 Alexandre Zabi