L. P. Alonzi
A5082956785- Particle physics theoretical and experimental studies
- Atomic and Subatomic Physics Research
- Quantum Chromodynamics and Particle Interactions
- Nuclear Physics and Applications
- Dark Matter and Cosmic Phenomena
- Renal Transplantation Outcomes and Treatments
- Radiation Detection and Scintillator Technologies
- Quantum, superfluid, helium dynamics
- Nuclear physics research studies
- Advanced NMR Techniques and Applications
- Transplantation: Methods and Outcomes
- Particle Detector Development and Performance
- Data Stream Mining Techniques
- Industrial Vision Systems and Defect Detection
- Anomaly Detection Techniques and Applications
- Water Systems and Optimization
- High-Energy Particle Collisions Research
- Medical Imaging Techniques and Applications
- Mechanical Circulatory Support Devices
- Neutrino Physics Research
- Innovation Policy and R&D
- Scientific Research and Discoveries
- Crime, Illicit Activities, and Governance
- Domain Adaptation and Few-Shot Learning
- Time Series Analysis and Forecasting
University of Virginia
2009-2023
University of Washington
2015-2021
University of Zurich
2009
Paul Scherrer Institute
2009
Joint Institute for Nuclear Research
2009
National Centre for Nuclear Research
2009
Tbilisi State University
2009
Rudjer Boskovic Institute
2009
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 report the first observation of parity-violating 2.2 MeV gamma-ray asymmetry $A^{np}_\gamma$ in neutron-proton capture using polarized cold neutrons incident on a liquid parahydrogen target at Spallation Neutron Source Oak Ridge National Laboratory. isolates $\Delta I=1$, \mbox{$^{3}S_{1}\rightarrow {^{3}P_{1}}$} component weak nucleon-nucleon interaction, which is dominated by pion exchange and can be directly related to single coupling constant either DDH meson model or pionless EFT....
Abstract Background Recent studies demonstrate high offer decline and organ non‐utilization rates are associated with increased pediatric heart transplant waitlist mortality. We sought to determine which donor, candidate, specific variables most importantly influenced these decisions using only data available at the time of each offer. Methods Retrospective review (<18 years) donor offers made candidates in United States between 2010 2020. In addition standard UNOS, we extracted objective...
We present a machine learning based approach to the cross section and asymmetries for deeply virtual Compton scattering from an unpolarized proton target using both polarized electron beam. Machine methods are needed study eventually interpret outcome of exclusive experiments since these reactions characterized by complex final state with larger number kinematic variables observables, exponentially increasing difficulty quantitative analyses. Our deep neural network (FemtoNet) uncovers...
Credit card fraud is a costly problem for banks and major frustration consumers. As such, static models to detect that rely on supervised training are exposed the risk of being learned circumvented. Previous adversarial learning work in prevention showed increased effectiveness over did not account changing fraudster behavior. We extend this by utilizing Reinforcement Learning framing issuer interaction as Markov Decision Process (MDP) performing prediction control. Our MDP takes perspective...
Precision measurements in neutron beta decay serve to determine the coupling constants of and allow for several stringent tests standard model. This paper discusses design expected performance Nab spectrometer.
Simple dynamics, few available decay channels, and highly controlled radiative loop corrections, make pion muon decays a sensitive means of exploring details the underlying symmetries. We review current status rare decays: π + → e ν (π e2 ), νγ e2γ 0 e3 [Formula: see text]. For latter we report new preliminary values for branching ratio B(E γ > 10 MeV , θ eγ 30°) = 4.365 (9) stat (42) syst × -3 parameter text], both in excellent agreement with standard model predictions. recent...
A new measurement of Bπe2, the π+→e+ν(γ) decay branching ratio, is currently under way at Paul Scherrer Institute. The present experimental result on Bπe2 constitutes most accurate test lepton universality available. accuracy, however, still lags behind theoretical precision by over an order magnitude. Because large helicity suppression πe2 decay, its ratio susceptible to significant contributions from physics, making this a particularly suitable subject study.
Building on the rare pion and muon decay results of PIBETA experiment, PEN collaboration has undertaken a precise measurement B_{\pi e2} = R^\pi_{e/\mu}, \pi^+ -> e^+\nu(\gamma) branching ratio, at Paul Scherrer Institute, to reduce present 40\times experimental precision lag behind theory ~ 6-7\times. Because large helicity suppression, R^\pi_{e/\mu} is uniquely sensitive contributions from non-(V-A) physics, making this particularly suitable subject study. Even current precision, value...
With few open channels and uncomplicated theoretical description, charged pion decays are uniquely sensitive to certain standard model (SM) symmetries, the universality of weak fermion couplings, aspects structure chiral dynamics. We review current knowledge electronic decay $π^+ \to e^+ ν_e(γ)$, or $π_{e2(γ)}$, resulting limits on non-SM processes. Focusing PEN experiment at Paul Scherrer Institute (PSI), Switzerland, we examine prospects for further improvement in near term.
Allowed charged $\pi$ meson decays are characterized by simple dynamics, few available decay channels, mainly into leptons, and extremely well controlled radiative loop corrections. In that sense, pion represent a veritable triumph of the standard model (SM) elementary particles interactions. This relative theoretical simplicity makes sensitive means for testing underlying symmetries universality weak fermion couplings, as studying structure chiral dynamics. Even after considerable recent...
We report a measurement of two energy-weighted $\ensuremath{\gamma}$ cascade angular distributions from polarized slow neutron capture on the $^{35}\mathrm{Cl}$ nucleus, one parity-odd correlation proportional to $\stackrel{P\vec}{{s}_{n}}\ifmmode\cdot\else\textperiodcentered\fi{}\stackrel{P\vec}{{k}_{\ensuremath{\gamma}}}$ and parity-even...
There is substantial need to increase donor heart utilization in pediatric transplantation. Almost half of donors are discarded, despite nearly 20% waitlist mortality. Physicians have limited time view condition data and decide accept the once becomes available. Due large amount associated with each lack data-driven guidelines, physicians often do not adequate metrics determine acceptable quality. This research characterizes differences clinical course between accepted rejected hearts. A...
A new measurement of $B_{πe2}$, the $π^+ \to e^+ν(γ)$ decay branching ratio, is currently under way at Paul Scherrer Institute. The present experimental result on $B_{πe2}$ constitutes most accurate test lepton universality available. accuracy, however, still lags behind theoretical precision by over an order magnitude. Thanks to large helicity suppression $π_{e2}$ decay, ratio susceptible significant contributions from physics, making this a particularly suitable subject study.
Allowed charged $\pi$ meson decays are characterized by simple dynamics, few available decay channels, mainly into leptons, and extremely well controlled radiative loop corrections. In that sense, pion represent a veritable triumph of the standard model (SM) elementary particles interactions. This relative theoretical simplicity makes sensitive means for testing underlying symmetries universality weak fermion couplings, as studying structure chiral dynamics. Even after considerable recent...
A central problem for organizations with a tactical surveillance mission is that of the "quiet agent." The quiet agent concerns real-time detection entity moving in midst other entities, such as silent person passing through an otherwise noisy crowd. made possible by effect it has on surrounding agents and environment. In this paper we describe proof-of-concept machine learning framework able to detect closed spaces where audio monitoring available. Our approach begins simulating environment...