E. Efstathiadis
A5053236531- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Muon and positron interactions and applications
- Superconducting Materials and Applications
- Computational Physics and Python Applications
- Particle Accelerators and Free-Electron Lasers
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Particle accelerators and beam dynamics
- Atomic and Subatomic Physics Research
- Noncommutative and Quantum Gravity Theories
- Gene expression and cancer classification
- Distributed and Parallel Computing Systems
- Machine Learning in Bioinformatics
- Advanced X-ray Imaging Techniques
- Bayesian Modeling and Causal Inference
- Genomic variations and chromosomal abnormalities
- Gene Regulatory Network Analysis
- Genomics and Chromatin Dynamics
- Peer-to-Peer Network Technologies
- Black Holes and Theoretical Physics
- Stochastic processes and statistical mechanics
- Text and Document Classification Technologies
- Tuberculosis Research and Epidemiology
New York University
2015
NYU Langone Health
2012-2014
York University
2010
Boston University
1997-2009
Brookhaven National Laboratory
1995-2005
Tokyo Institute of Technology
2003
Yale University
1998
City College of New York
1992-1996
We present the final report from a series of precision measurements muon anomalous magnetic moment, ${a}_{\ensuremath{\mu}}=(g\ensuremath{-}2)/2$. The details experimental method, apparatus, data taking, and analysis are summarized. Data obtained at Brookhaven National Laboratory, using nearly equal samples positive negative muons, were used to deduce ${a}_{\ensuremath{\mu}}(\mathrm{\text{Expt}})=11659208.0(5.4)(3.3)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}10}$, where...
A precise measurement of the anomalous g value, a(mu) = (g-2)/2, for positive muon has been made at Brookhaven Alternating Gradient Synchrotron. The result a(mu+) 11 659 202(14) (6) x 10(-10) (1.3 ppm) is in good agreement with previous measurements and an error one third that combined data. current theoretical value from standard model a(mu)(SM) 159.6(6.7) (0.57 a(mu)(exp) - 43(16) which world average experimental value.
Three independent searches for an electric dipole moment (EDM) of the positive and negative muons have been performed, using spin precession data from muon g-2 storage ring at Brookhaven National Laboratory. Details on experimental apparatus three analyses are presented. Since individual results muon, as well combined result, d=-0.1(0.9)E-19 e-cm, all consistent with zero, we set a new EDM limit, |d| < 1.9E-19 e-cm (95% C.L.). This represents factor 5 improvement over previous best limit EDM.
A higher precision measurement of the anomalous g value, a(mu)=(g-2)/2, for positive muon has been made at Brookhaven Alternating Gradient Synchrotron, based on data collected in year 2000. The result a(mu(+))=11 659 204(7)(5)x10(-10) (0.7 ppm) is good agreement with previous measurements and an error about one-half that combined data. present world average experimental value a(mu)(expt)=11 203(8)x10(-10) ppm).
Received 22 August 2002DOI:https://doi.org/10.1103/PhysRevLett.89.129903©2002 American Physical Society
An important aspect to performing text categorization is selecting appropriate supervised classification and feature selection methods. A comprehensive benchmark needed inform best practices in this broad application field. Previous benchmarks have evaluated performance for a few methods limited ways optimize them. The present work updates prior by increasing the number of classifiers order magnitude, including adding recently developed, state‐of‐the‐art Specifically, study used 229 data...
The muon anomalous magnetic moment has been measured in a new experiment at Brookhaven. Polarized muons were stored superferric ring, and the angular frequency difference, ${\ensuremath{\omega}}_{a}$, between spin precession orbital frequencies was determined by measuring time distribution of high-energy decay positrons. ratio $R$ ${\ensuremath{\omega}}_{a}$ to Larmor free protons, ${\ensuremath{\omega}}_{p}$, storage-ring field measured. We find...
The spin precession frequency of muons stored in the $(g-2)$ storage ring has been analyzed for evidence Lorentz and CPT violation. Two violation signatures were searched for: a nonzero $\Delta\omega_{a}$ (=$\omega_{a}^{\mu^{+}}-\omega_{a}^{\mu^{-}}$); sidereal variation $\omega_{a}^{\mu^{\pm}}$. No significant effect is found, following limits on standard-model extension parameters are obtained: $b_{Z} =-(1.0 \pm 1.1)\times 10^{-23}$ GeV; $(m_{\mu}d_{Z0}+H_{XY}) = (1.8 6.0 \times 10^{-23})$...
A new measurement of the positive muon's anomalous magnetic moment has been made at Brookhaven Alternating Gradient Synchrotron using direct injection polarized muons into superferric storage ring. The angular frequency difference ${\ensuremath{\omega}}_{a}$ between spin precession ${\ensuremath{\omega}}_{s}$ and orbital ${\ensuremath{\omega}}_{c}$ is measured as well free proton NMR ${\ensuremath{\omega}}_{p}.$ These determine...
The spectrum of modern molecular high-throughput assaying includes diverse technologies such as microarray gene expression, miRNA proteomics, DNA methylation, among many others. Now that these have matured and become increasingly accessible, the next frontier is to collect "multi-modal" data for same set subjects conduct integrative, multi-level analyses. While multi-modal does contain distinct biological information can be useful answering complex biology questions, its value predicting...
Defining the architecture of a specific cancer genome, including its structural variants, is essential for understanding tumor biology, mechanisms oncogenesis, and designing effective personalized therapies. Short read paired-end sequencing currently most sensitive method detecting somatic mutations that arise during development. However, mapping variants using this leads to large number false positive calls, mostly due repetitive nature genome difficulty assigning correct positions short...
Discovery of causal relations from data is a fundamental objective several scientific disciplines. Most discovery algorithms that use observational can infer causality only up to statistical equivalency class, thus leaving many undetermined. In general, complete identification requires experimentation augment discoveries data. This has led the recent development methods for active learning networks utilize both and experimental in order discover networks. this work, we focus on problem...
We present H0 candidate events, where the is observed through decay → Σ−p. These decays are reconstructed in three TPC modules of E810 while triggering on central Si Pb events at 14.6 × A GeV/c beam.
Two signals of CPT/Lorentz violation have been searched for in data collected the muon (9-2) experiment E821 at Brookhaven Lab AGS. Muons 3.1 GeV/c were stored a magnetic storage ring, and their spin precession frequency wa relative to momentum was measured. The difference average frequencies p+ prestricts Standard-Model Extension parameter b Z . non-observation sidereal variation over severalmonth collection period restricts parameters b: *
Research teams collaborating across institutional, geographical and cultural boundaries are increasingly common. Funding agencies including the National Science Foundation (NSF) Institutes of Health (NIH) strongly encourage virtual organization building collaboration institutions disciplines. A set software tools that enables scientists to efficiently share information resources with distributed collaborators is key facilitate research institutional boundaries. Utilizing HUBzero, we have...