S. Calzaferri
A5070398078- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Computational Physics and Python Applications
- Cosmology and Gravitation Theories
- Neutrino Physics Research
- Radiation Detection and Scintillator Technologies
- Muon and positron interactions and applications
- Astrophysics and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Black Holes and Theoretical Physics
- Medical Imaging Techniques and Applications
- Nuclear physics research studies
- Nuclear Physics and Applications
- Atomic and Subatomic Physics Research
- Stochastic processes and financial applications
- Laser-Plasma Interactions and Diagnostics
- Superconducting Materials and Applications
- Optical properties and cooling technologies in crystalline materials
- Distributed and Parallel Computing Systems
- Gamma-ray bursts and supernovae
- Nuclear reactor physics and engineering
- Radiopharmaceutical Chemistry and Applications
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia
2020-2025
University of Pavia
2019-2025
Institute of High Energy Physics
2020-2024
Gran Sasso Science Institute
2024
A. Alikhanyan National Laboratory
2022-2024
University of Antwerp
2024
European Organization for Nuclear Research
2023
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2020-2022
Hanyang University
2021
Kyungpook National University
2020
Abstract In July 2022, the experiments installed on Large Hadron Collider (LHC) accelerator ring started a new data taking phase, Run-3. Before this period, an upgrade campaign took place during so called Long Shutdown 2 (2018–2022). particular, muon system of CMS experiment has been upgraded with installation gas detector station, GE1/1, based Gas Electron Multiplier technology (GEM). The scheduled two additional GEM stations: GE2/1 and ME0. aim stations is to maintain performance system,...
A muon collider would enable the big jump ahead in energy reach that is needed for a fruitful exploration of fundamental interactions. The challenges producing collisions at high luminosity and 10 TeV centre mass are being investigated by recently-formed International Muon Collider Collaboration. This Review summarises status recent advances on colliders design, physics detector studies. aim to provide global perspective field outline directions future work.
Abstract The Large Hadron Collider (LHC) and the experiments installed there are being upgraded for High Luminosity LHC project that will provide a greatly enlarged data sample in search physics beyond Standard Model. During Long Shutdown 2, from 2018 to first months of 2022, some these upgrades were completed. In particular, muon spectrometer CMS experiment was with installation GE1/1 detector station, based on Gas Electron Multiplier (GEM) technology. This station is positioned endcap...
Among the post-LHC generation of particle accelerators, muon collider represents a unique machine with capability to provide very high energy leptonic collisions and open path vast mostly unexplored physics programme. However, on experimental side, such great potential is accompanied by unprecedented technological challenges, due fact that muons are unstable particles. Their decay products interact elements produce an intense flux background particles eventually reach detector may degrade...
Abstract The Gas Electron Multiplier (GEM) detectors of the GE1/1 station CMS experiment have been operated in magnetic field for first time on 7 th October 2021. During ramps, several discharge phenomena were observed, leading to instability GEM High Voltage (HV) power system. In order reproduce behavior, it was decided conduct a dedicated test at CERN North Area with Goliath magnet, using four spare chambers. consisted studying characteristics events that occurred different detector...
Gas Electron Multiplier (GEM) technology, in particular triple-GEM, was selected for the upgrade of CMS endcap muon system following several years intense effort on R&D. The triple-GEM chambers (GE1/1) are being installed at station 1 during second long shutdown with goal reducing Level-1 trigger rate and improving tracking performance harsh radiation environment foreseen future LHC operation [1]. A first installation a demonstrator started beginning 2017: 10 detectors were aim gaining...
The CMS muon system in the region with 2.03<|η|<2.82 is characterized by a very harsh radiation environment which can generate hit rates up to 144 kHz/cm2 and an integrated charge of 8 C/cm2 over ten years operation. In order increase detector performance acceptance for physics events including muons, new station (ME0) has been proposed installation that region. technology Triple—Gas Electron Multiplier (Triple-GEM), already qualified operation system. However, additional set studies focused...
This contribution illustrates the four different detector technologies used in muon spectrometer of Compact Muon Solenoid (CMS) experiment, installed on Large Hadron Collider (LHC), and their future upgrades. These have aim to cope with scheduled increase instantaneous luminosity LHC so-called High-Luminosity phase. CMS Collab. [J. Instrum. 3, S08004 (2008), https://doi.org/10.1088/1748-0221/3/08/S08004 ].
After the Phase-2 high-luminosity upgrade to Large Hadron Collider (LHC), collision rate and therefore background will significantly increase, particularly in high $\eta$ region. To improve both tracking triggering of muons, Compact Muon Solenoid (CMS) Collaboration plans install triple-layer Gas Electron Multiplier (GEM) detectors CMS muon endcaps. Demonstrator GEM were installed during 2017 gain operational experience perform a preliminary investigation detector performance. We present...
The International Muon Collider Collaboration (IMCC) [1] was established in 2020 following the recommendations of European Strategy for Particle Physics (ESPP) and implementation Physics-Accelerator R&D Roadmap by Laboratory Directors Group [2], hereinafter referred to as LDG roadmap. Study (MuC) covers accelerator complex, detectors physics a future muon collider. In 2023, Commission support obtained design study collider (MuCol) [3]. This project started on 1st March with work-packages...
A 10 TeV muon collider is a promising machine for the high-energy frontier. However, beam-induced background (BIB), originated from interaction of leptons decay with machine, represents big challenge. To deal its high occupancy, new reconstruction algorithms and high-performance detectors are required. In this context, studies concerning spectrometer presented. geometry has been designed seven (five) layers Gas Electron Multipliers (GEMs) in barrel (endcap) as track-sensitive chambers....
The muon system of the CMS experiment at LHC has been upgraded by installation first station Gas Electron Multiplier (GEM), GE1/1, over Long Shutdown (LS) 2. High-Luminosity phase (HL-LHC) upgrade for incorporates two additional stations, GE2/1 and ME0. Three chambers have installed in CMS, with new ones added beginning 2024, while ME0 is slated during LS3. aim to enhance system's capabilities HL-LHC extending its acceptance up $\vert\eta\vert = 2.8$ improving triggering maintaining...
In 2017 the LHC reached record beam luminosity 2 ⋅ 1034 cm−2 s−1, around a factor of two beyond design value. December 2018 Large Hadron Collider (LHC) entered LS2 phase (Long Shutdown 2), which will last until beginning 2021, in maintainance and upgrade program other smaller accelerators is scheduled. To cope with this also looking at following be increased to 5 s−1 experiments must upgraded as well. context muon subsystem CMS experiment began installing first GEM based detector station...
In the next years, energy and intensity frontiers of experimental Particle Physics will be pushed forward with upgrade existing accelerators (LHC at CERN) envisaged construction new machines scales up to hundreds TeV or unprecedented (FCC-hh, FCC-ee, ILC, Muon Collider). Large size, cost-effective, high-efficiency detection systems in high background environments are required order accomplish physics program. MPGDs offer a diversity technologies that allow them meet performance challenges...
Abstract A temperature monitoring system based on fibre Bragg grating (FBG) optic sensors has been developed for the gas electron multiplier (GEM) chambers of Compact Muon Solenoid (CMS) detector. The was tested in prototype undergoing a general test various technological solutions adopted their construction. lasted about two years and conducted with being installed CMS detector operated during regular experimental running. In this paper, we present results that address choice materials...