A5049906708- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Particle Accelerators and Free-Electron Lasers
- Medical Imaging Techniques and Applications
- Nuclear Physics and Applications
- Dark Matter and Cosmic Phenomena
- Nuclear physics research studies
- Advanced X-ray and CT Imaging
- CCD and CMOS Imaging Sensors
- Radiation Detection and Scintillator Technologies
- Superconducting Materials and Applications
- Obesity, Physical Activity, Diet
- Computational Physics and Python Applications
- International Science and Diplomacy
- Nuclear reactor physics and engineering
- X-ray Spectroscopy and Fluorescence Analysis
- Atomic and Subatomic Physics Research
- Earth Systems and Cosmic Evolution
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Neutrino Physics Research
- Cold Atom Physics and Bose-Einstein Condensates
- Obesity and Health Practices
Washington University in St. Louis
2012-2025
GSI Helmholtz Centre for Heavy Ion Research
2016-2021
George Washington University
2020
Vassar College
1990-2016
Research Association for Combustion Engines
2001-2007
Institut National de Physique Nucléaire et de Physique des Particules
2005
Centre National de la Recherche Scientifique
2005
Conservatoire National des Arts et Métiers
2005
Institut de Physique
2005
University of Freiburg
1999-2002
The value of $\frac{{\ensuremath{\epsilon}}^{\ensuremath{'}}}{\ensuremath{\epsilon}}$, a measure the $\mathrm{CP}$-nonconserving direct transition from ${K}_{L}^{0}$ state to isospin-2 two pions, was determined be 0.0017\ifmmode\pm\else\textpm\fi{}0.0082, result that excludes interesting models $\mathrm{CP}$ nonconservation.
Directed and elliptic flow for the Au + system at incident energies between 40 150 MeV per nucleon has been measured using INDRA 4 pi multi-detector. For semi-central collisions, of Z <= 2 particles switches from in-plane to out-of-plane enhancement around 100 nucleon, in good agreement with result reported by FOPI Collaboration. The directed changes sign a bombarding energy 50 60 remains negative lower energies. conditions appearance possible origins are discussed.
Introduction Women of reproductive age (18–44 years) are at an increased risk developing obesity due to pregnancy, life-transitions, and marginalization. Obesity in women negatively affects women’s health pregnancy outcomes can increase their children will develop obesity. Less is known about the interpersonal environmental levels for age. This study uses socioecological model explore across ecological levels. Materials methods A secondary cross-sectional analysis was conducted using...
The quality of school wellness policy implementation varies among schools in the United States. objective this study was to characterize environment nationally and identify factors influencing effectiveness implementation.
A 4096 pixel Photon Counting Chip (PCC) has been developed and tested. It is aimed primarily at medical imaging although it can be used for other applications involving particle counting. The readout chip consists of a matrix 64 by identical square pixels, whose side measures 170 micrometers bump-bonded to similar GaAs or Si diodes covering sensitive area 1.18 cm2. electronics in each cell comprises preamplifier, discriminator with variable threshold 3-bit tune as well 15-bit counter. Each...
We report on a search for the flavor-changing neutral-current decays ${K}_{L}^{0}$\ensuremath{\rightarrow}\ensuremath{\mu}+e and ${K}_{L}^{0}$\ensuremath{\rightarrow}e+e. Limits obtained these processes are B(${K}_{L}^{0}$\ensuremath{\rightarrow}\ensuremath{\mu}+e)6.7\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}9}$ B(${K}_{L}^{0}$\ensuremath{\rightarrow}e+e)4.5\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}9}$ (90% confidence level).
We report on results of a dedicated search for the CP-violating decay ${\mathit{K}}_{\mathit{L}}$\ensuremath{\rightarrow}${\mathrm{\ensuremath{\pi}}}^{0}$${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{\ensuremath{-}}}$. have found no evidence this mode and obtain 90%-confidence upper limit 5.5\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}9}$ its branching ratio.
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We report on a measurement of the branching ratio for ${\mathit{K}}_{\mathit{L}}$ double Dalitz decay ${\mathit{K}}_{\mathit{L}}$\ensuremath{\rightarrow}${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{\ensuremath{-}}}$${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{\ensuremath{-}}}$. The result, based observation six events, is B(${\mathit{K}}_{\mathit{L}}$\ensuremath{\rightarrow}${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{\ensuremath{-}}}$${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{\ensuremath{-}}}$)...
Results of a search for the decay mode ${K}_{L}^{0}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma}\mathrm{ee}$ ${K}_{L}^{0}\ensuremath{\rightarrow}\ensuremath{\gamma}\mathrm{ee}$ with hard internal bremsstrahlung) are reported. The measured branching ratio is (6.6\ifmmode\pm\else\textpm\fi{}3.2) \ifmmode\times\else\texttimes\fi{} ${10}^{\ensuremath{-}7}$, in agreement QED prediction 5.8 ${10}^{\ensuremath{-}7}$. infrared cutoff both ratios requirement that photons have an...
Correlation functions, constructed from directional projections of the relative velocities fragments, are used to determine shape breakup volume in coordinate space. For central collisions 129Xe + natSn at 50 MeV per nucleon incident energy, measured with 4pi multi-detector INDRA GSI, a prolate aligned along beam direction an axis ratio 1:0.7 is deduced. The sensitivity method discussed comparison conventional fragment-fragment velocity correlations.
Background: Sleep is important for health, but its relationship to cardiometabolic health in women of childbearing age remains unclear. Furthermore, stress, unmet basic needs, and lack physical activity may be related disrupted sleep poor these relationships differ by ethnicity. The purposes this study were investigate the between sleep, markers with overweight or obesity identify if differed that identified as Latino/Hispanic non-Latino/Hispanic Methods: A secondary cross-sectional analysis...
The neutron emission in projectile fragmentation at relativistic energies was studied with the Large-Area-Neutron-Detector LAND coupled to ALADIN forward spectrometer GSI Schwerionen-Synchrotron (SIS). Stable Sn124 and radioactive Sn107 La124 beams an incident energy of 600 MeV/nucleon were used explore N/Z dependence identified source. A cluster-recognition algorithm is applied for identifying individual particles within hit distributions registered LAND. obtained momentum are extrapolated...
A Brookhaven Fastbus system with 3 crate segments and 2 cable will be described. general view of the a description its use in E749, an experiment to better understand CP violation K-Zero decays, at AGS discussed.