A5050679317- Particle physics theoretical and experimental studies
- Dark Matter and Cosmic Phenomena
- Muon and positron interactions and applications
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- Nuclear Physics and Applications
- Atomic and Molecular Physics
- Particle accelerators and beam dynamics
- Nuclear physics research studies
- Particle Detector Development and Performance
- Astrophysics and Cosmic Phenomena
- Antenna Design and Analysis
- MXene and MAX Phase Materials
- Computational Physics and Python Applications
- Boron and Carbon Nanomaterials Research
- High-Energy Particle Collisions Research
- Magnetic confinement fusion research
- Radiation Detection and Scintillator Technologies
- Advanced Chemical Physics Studies
- Acoustic Wave Resonator Technologies
University College London
2023-2024
ETH Zurich
2019-2024
Paul Scherrer Institute
2022-2023
Shanghai Jiao Tong University
2022-2023
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
2022-2023
University of Pisa
2022-2023
Johannes Gutenberg University Mainz
2022-2023
European Organization for Nuclear Research
2022-2023
Tokyo Institute of Technology
1989-1992
This letter of intent proposes an experiment to search for electric dipole moment the muon based on frozen-spin technique. We intend exploit high field, $E=1{\rm GV/m}$, experienced in rest frame with a momentum $p=125 {\rm MeV/}c$ when passing through large magnetic field $|\vec{B}|=3{\rm T}$. Current fluxes at $μ$E1 beam line permit improved sensitivity $σ(d_μ)\leq 6\times10^{-23}e{\rm cm}$, about three orders magnitude more than current upper limit $|d_μ|\leq1.8\times10^{-19}e{\rm...
In April 2021, scientists active in muon physics met to discuss and work out the case for new High-Intensity Muon Beams (HIMB) project at PSI that could deliver of order $10^{10}$\,s$^{-1}$ surface muons experiments. Ideas concrete proposals were further substantiated over following months assembled present document. The high intensities will allow completely experiments with considerable discovery potential unique sensitivities. is outstanding extremely rich, ranging from fundamental...
Abstract At the Paul Scherrer Institut (PSI), we are developing a high-precision apparatus with aim of searching for muon electric dipole moment (EDM) unprecedented sensitivity. The underpinning principle this experiment is frozen-spin technique, method that suppresses spin precession due to anomalous magnetic moment, thereby enhancing signal-to-noise ratio EDM signals. This increased sensitivity enables measurements would be difficult achieve conventional $$g - 2$$ <mml:math...
The search for a permanent electric dipole moment (EDM) of the muon is an excellent probe physics beyond Standard Model particle physics.We propose first dedicated EDM employing frozen-spin technique at Paul Scherrer Institute (PSI), Switzerland, with sensitivity 6 × 10 -23 e • cm, improving current best limit set by E821 experiment Brookhaven National Laboratory more than three orders magnitude.In preparation high precision to measure EDM, several R&D studies have been performed PSI:...
In order to study the properties of hot nuclei, neutrons emitted in $^{40}\mathrm{Ar}$+Ni, $^{92}\mathrm{Mo}$, $^{122}\mathrm{Sn}$ reactions at E/A=26 MeV were measured coincidence with fusion residues. The neutron spectra obtained for different residue velocities analyzed moving source model. are well reproduced two sources; one corresponds preequilibrium emission and other decay nuclei. extracted multiplicity initial temperature nuclei indicate formation thermally equilibrated excitation...
The presence of a permanent electric dipole moment in an elementary particle implies Charge-Parity symmetry violation and thus could help explain the matter-antimatter asymmetry observed our universe. Within context Standard Model, particles is extremely small. However, many Model extensions such as supersymmetry predict large moments. Recently, muon has become topic particular interest due to tensions magnetic anomaly electron, hints lepton-flavor universality B-meson decays. In this...
Abstract We are developing a novel high-brightness atomic beam, comprised of two-body exotic atom called muonium (M = μ + e - ), for next-generation physics and gravitational interaction measurements. This M source originates from thin sheet superfluid helium (SFHe), hence diagnostics later measurements require detection system which is operational in dilution cryostat at temperatures below 1 K. In this paper, we describe the operation characterization silicon photomultipliers (SiPMs)...
We present the first demonstration of simultaneous phase space compression in two spatial dimensions a positive muon beam, stage novel high-brightness beam under development by muCool collaboration at Paul Scherrer Institute. The keV-energy, sub-mm size would enable factor 10$^5$ improvement brightness for precision muSR, and atomic particle physics measurements with muons. This is achieved within cryogenic helium gas target strong density gradient, placed homogeneous magnetic field,...
Abstract Despite the many successes of Standard Model particle physics, there are still several physical observations that it cannot explain, such as matter-antimatter asymmetry, non-zero neutrino masses, and microscopic nature dark matter. To address these limitations, extensions to standard model necessary, searches for electric dipole moments (EDMs) leptons valuable test. The search a muon EDM is only on bare lepton second generation, complementing an electron using polar molecules. A...
At the Paul Scherrer Institute, muCool device is being developed to compress 6D phase space of a standard $\mu^{+}$ beam by factor $10^9$ with up $10^{-4}$ efficiency. Efficient compression has been observed using cryogenic helium gas target and complex $E$ $B$-fields. Once compressed, extracted through windowless orifice into vacuum field-free region. This article outlines current status focus on muons extraction stage
A low-emittance, high-intensity atomic beam of muonium ($\mathrm{M}=\mu^+ + \mathrm{e}^-$) using superfluid helium as muon-to-muonium converter is being developed at the Paul Scherrer Institute (PSI). This could advance laser spectroscopy and allow first interferometry experiments for direct observation M gravitational interaction. In this paper, we describe development compact detection schemes which resulted in background-suppressed vacuum, can be adapted cryogenic measurements. Using...
Electric dipole moments (EDM) of non-degenerate systems with angular momentum violate parity and time symmetry, by the virtue CPT-theorem also combined symmetry charge (CP). Although CP violation (CPV) is an established ingredient weak sector standard model particle physics (SM), its contribution to EDM a fundamental too small be measured any soon. Therefore, discovery would genuine signal yet unobserved physics. As muon only accessible probe second generation fermions fermion which can on...
The search for a permanent electric dipole moment (EDM) of the muon is an excellent probe physics beyond Standard Model particle physics. We propose first dedicated EDM employing frozen-spin technique at Paul Scherrer Institute (PSI), Switzerland, with sensitivity $6 \times 10^{-23}~e\!\cdot\!\mathrm{cm}$, improving current best limit set by E821 experiment Brookhaven National Laboratory more than three orders magnitude. In preparation high precision to measure EDM, several R&D studies...
A low-emittance, high-intensity atomic beam of muonium ($\mathrm{M}=μ^+ + \mathrm{e}^-$) using superfluid helium as muon-to-muonium converter is being developed at the Paul Scherrer Institute (PSI). This could advance laser spectroscopy and allow first interferometry experiments for direct observation M gravitational interaction. In this paper, we describe development compact detection schemes which resulted in background-suppressed vacuum, can be adapted cryogenic measurements. Using these...
The CAMAC system, composed of a front-end processor and super minicomputer, was realized for nuclear physics experiments using continuous ion beams from cyclotron found to be applicable measurements at high counting rate up 100 kB/s by transferring the block data between two processors. large scaled central computer also became useful on-line analyses obtained rate.