S. Corrodi
A5070390760- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Superconducting Materials and Applications
- Quantum Chromodynamics and Particle Interactions
- Muon and positron interactions and applications
- Atomic and Subatomic Physics Research
- Neutrino Physics Research
- Medical Imaging Techniques and Applications
- Particle accelerators and beam dynamics
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- NMR spectroscopy and applications
- Advanced NMR Techniques and Applications
- High-Energy Particle Collisions Research
- Scientific Research and Discoveries
- Advanced Electrical Measurement Techniques
- Nuclear Physics and Applications
- Radiation Therapy and Dosimetry
- Magnetic Properties and Applications
- Particle Accelerators and Free-Electron Lasers
- Quantum, superfluid, helium dynamics
- Geomagnetism and Paleomagnetism Studies
- CCD and CMOS Imaging Sensors
Argonne National Laboratory
2020-2024
École Polytechnique Fédérale de Lausanne
2019-2023
ETH Zurich
2015-2021
University of Geneva
2016
University of Silesia in Katowice
2016
University of Zurich
2016
We present the first results of Fermilab Muon g-2 Experiment for positive muon magnetic anomaly $a_\mu \equiv (g_\mu-2)/2$. The is determined from precision measurements two angular frequencies. Intensity variation high-energy positrons decays directly encodes difference frequency $\omega_a$ between spin-precession and cyclotron frequencies polarized muons in a storage ring. ring field measured using nuclear resonance probes calibrated terms equivalent proton spin precession...
We present a new measurement of the positive muon magnetic anomaly, a_{μ}≡(g_{μ}-2)/2, from Fermilab Muon g-2 Experiment using data collected in 2019 and 2020. have analyzed more than 4 times number positrons decay our previous result 2018 data. The systematic error is reduced by factor 2 due to better running conditions, stable beam, improved knowledge field weighted distribution, ω[over ˜]_{p}^{'}, anomalous precession frequency corrected for beam dynamics effects, ω_{a}. From ratio...
The Muon g-2 Experiment at Fermi National Accelerator Laboratory (FNAL) has measured the muon anomalous precession frequency $ω_a$ to an uncertainty of 434 parts per billion (ppb), statistical, and 56 ppb, systematic, with data collected in four storage ring configurations during its first physics run 2018. When combined a precision measurement magnetic field experiment's ring, determines anomaly $a_μ({\rm FNAL}) = 116\,592\,040(54) \times 10^{-11}$ (0.46 ppm). This article describes...
The Fermi National Accelerator Laboratory has measured the anomalous precession frequency $a^{}_\mu = (g^{}_\mu-2)/2$ of muon to a combined precision 0.46 parts per million with data collected during its first physics run in 2018. This paper documents measurement magnetic field storage ring. is monitored by nuclear resonance systems and calibrated terms equivalent proton spin spherical water sample at 34.7$^\circ$C. weighted distribution resulting $\tilde{\omega}'^{}_p$, denominator ratio...
The Mu3e experiment aims to find or exclude the lepton flavour violating decay $\mu \rightarrow eee$ at branching fractions above $10^{-16}$. A first phase of using an existing beamline Paul Scherrer Institute (PSI) is designed reach a single event sensitivity $2\cdot 10^{-15}$. We present overview all aspects technical design and expected performance phase~I detector. high rate up $10^{8}$ muon decays per second low momenta electrons positrons pose unique set challenges, which we tackle...
We present details on a new measurement of the muon magnetic anomaly, $a_\mu = (g_\mu -2)/2$. The result is based positive data taken at Fermilab's Muon Campus during 2019 and 2020 accelerator runs. uses $3.1$ GeV$/c$ polarized muons stored in $7.1$-m-radius storage ring with $1.45$ T uniform field. value $ a_{\mu}$ determined from measured difference between spin precession frequency its cyclotron frequency. This normalized to strength field, using Nuclear Magnetic Resonance (NMR). ratio...
We present a new measurement of the positive muon magnetic anomaly, $a_\mu \equiv (g_\mu - 2)/2$, from Fermilab Muon $g\!-\!2$ Experiment using data collected in 2019 and 2020. have analyzed more than 4 times number positrons decay our previous result 2018 data. The systematic error is reduced by factor 2 due to better running conditions, stable beam, improved knowledge field weighted distribution, $\tilde{\omega}'^{}_p$, anomalous precession frequency corrected for beam dynamics effects,...
We present the results from first axion-like particle search conducted using a dish antenna. The experiment was at room temperature and sensitive to particles in $44-52\,\mu\mathrm{eV}$ range ($10.7 - 12.5\,\mathrm{GHz}$). novel antenna geometry proposed by BREAD collaboration previously used conduct dark photon same mass range. To allow for sensitivity, placed $3.9\,\mathrm{T}$ solenoid magnet Argonne National Laboratory. In presence of magnetic field, matter converts photons conductive...
Mu3e is a novel experiment searching for charged lepton flavor violation in the rare decay μ → eee. In order to reduce background by up 16 orders of magnitude, vertex position, time and particle momenta have be measured precisely. A pixel tracker based on 50 μm thin high voltage monolithic active sensors (HV-MAPS) magnetic field will deliver precise momentum information. Test beam results like an excellent efficiency >99.5% resolution better than 16.6 ns obtained with MuPix HV-MAPS chip...
The Mu3e experiment aims to find or exclude the lepton flavour violating decay $\mu^+\to e^+e^-e^+$ with a sensitivity of one in 10$^{16}$ muon decays. first phase is currently under construction at Paul Scherrer Institute (PSI, Switzerland), where beams up 10$^8$ muons per second are available. detector will consist an ultra-thin pixel tracker made from High-Voltage Monolithic Active Pixel Sensors (HV-MAPS), complemented by scintillating tiles and fibres for precise timing measurements....
The proposed SAFIR PET detector will measure positron electron annihilations at injected activities up to 500 MBq in a mouse or rat. system is required have the best possible timing resolution order remove accidental coincidences (randoms) and maximise image quality for short time frames allowing possibility of 4-D kinetic modelling simultaneous MRI first time. Two different ASICs, TOFPET STiC, been investigated with LYSO crystal scintillators coupled SiPM detectors using 18F sources 480...
The Muon g−2 experiment at Fermilab (E989) aims to measure the anomalous magnetic moment, aμ, of muon with a precision 140 parts-per-billion. This requires precise measurement both spin precession frequency, ωa, muons stored in field 1.45 T, and that terms shielded proton Larmor ω'p. ω'p total systematic uncertainty 70 parts-per-billion involves combination various nuclear resonance (NMR) probes. There are 378 probes mounted fixed locations constantly monitor drifts. A water-based,...
This paper presents the beam dynamics systematic corrections and their uncertainties for Run-1 data set of Fermilab Muon g-2 Experiment. Two to measured muon precession frequency $\omega_a^m$ are associated with well-known effects owing use electrostatic quadrupole (ESQ) vertical focusing in storage ring. An average vertically oriented motional magnetic field is felt by relativistic muons passing transversely through radial electric components created ESQ system. The correction depends on...
An observation of Charged Lepton Flavor Violation (CLFV) would be unambiguous evidence for physics beyond the Standard Model. The Mu2e and COMET experiments, under construction, are designed to push sensitivity CLFV in mu e conversion process unprecedented levels. Whether is observed or not, there a strong case made further improving sensitivity, examining on additional target materials. Mu2e-II proposed upgrade Mu2e, with at least an order magnitude rate over Mu2e. approach challenges this...
Mu3e is a dedicated experiment to search for the rare lepton flavour violating decay μ+ → e+e−e+. Its ultimate goal find or exclude this process with sensitivity of one in 1016 muon decays. This constitutes four orders magnitude improvement respect current state-of-the art. A thin multi-layer scintillating fibre detector consisting 250μm fibres read out on both sides silicon photomultiplier arrays provides an excellent time measurement σ<500ps order reject combinatorial background at...
We present details of a high-accuracy absolute scalar magnetometer based on pulsed proton NMR. The $B$-field magnitude is determined from the precession frequency spins in cylindrical sample water after accounting for field perturbations probe materials, shape, and other corrections. Features design, testing procedures, corrections necessary qualification as an are described. device was tested at $B = 1.45$\,T but can be modified range exceeding 1--3\,T. used to calibrate NMR magnetometers...
Zusammenfassung Das Myon‐g‐2‐Experiment am Fermilab hat eine Abweichung des anomalen magnetischen Moments Myons von der theoretischen Vorhersage gemessen, die nun zusammen mit dem Resultat Brookhaven National Laboratory auf mehr als vier Sigma gestiegen ist – ein spannender Hinweis Physik jenseits Standardmodells. Und Kollaboration sehr gutem Weg, noch höhere experimentelle Präzision 0,14 ppm zu erreichen, etwa vierfache Verbesserung gegenüber Vorgängerexperiment. Wichtig wissen auch, dass...
We present the development and discuss performance of a compact scintillating fiber detector for Mu3e experiment accurate time measurements at very high particle rates. is new under preparation Paul Scherrer Institut (PSI) to search charged Lepton Flavor Violation in neutrinoless muon decay μ+→e+e−e+ with projected sensitivity 10−16 using most intense continuous surface beam world. A thin (thickness <0.2% radiation length X0) resolution about 250 ps, efficiency around 97%, spatial ∼100μm has...
The Snowmass report on rare processes and precision measurements recommended Mu2e-II a next generation muon facility at Fermilab (Advanced Muon Facility) as priorities for the frontier. Workshop future program FNAL was held in March 2023 to discuss design studies Mu2e-II, organizing efforts facility, identify synergies with other (e.g., collider). Topics included high-power targetry, status of R&D development compressor rings, FFA concepts experiments (conversion, decays, muonium...
The Mu3e experiment at PSI aims to search for the charged lepton flavor violating decay µ + → e -e with a sensitivity branching ratio of 10 -16 .To achieve this, high intensity muon beam rate 8 -10 9 muons per second is stopped on target.The electrons are detected silicon pixel tracking detector using High Voltage Monolithic Active Pixel Sensors (HV-MAPS) and timing detectors consisting scintillating fibres tiles.Instead triggered readout, uses online event filtering.This requires readout...
Highly segmented scintillating detectors read out by silicon photomultipliers offer a potential solution for experiments with strict material and space constrains where precise time position information is required.The current work addresses the performance of Kuraray SCSF81 round fibers 250µm diameter readout Hamamatsu MPPCs.Two to five fiber layers were assembled into ribbons their resolving capabilities determined.Additionally, two coupling schemes between scintillators photosensors...