A5087264569- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Air Quality Monitoring and Forecasting
- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- High-Energy Particle Collisions Research
- Vehicle emissions and performance
- Wind and Air Flow Studies
- Dark Matter and Cosmic Phenomena
- Insect Pheromone Research and Control
- Gas Sensing Nanomaterials and Sensors
- Structural Health Monitoring Techniques
- Computational Physics and Python Applications
- Advanced Chemical Sensor Technologies
- Superconducting Materials and Applications
- Neutrino Physics Research
- Relativity and Gravitational Theory
Karlsruhe Institute of Technology
2016-2025
Health factors concerning the well-being of urban population urge us to better comprehend impact emissions in environments on micro-scale. There is great necessity depict and monitor pollutant concentrations with high precision cities, by constructing an accurate validated digital air quality network. This work concerns development application a CFD model for dispersion particulate matter, CO, NOx from traffic activity highly busy area city Augsburg, Germany. Emissions were calculated based...
Recent progress in the determination of hadronic matrix elements has revealed a tension between measured value ${\ensuremath{\epsilon}}_{K}^{\ensuremath{'}}/{\ensuremath{\epsilon}}_{K}$, which quantifies direct $CP$ violation $K\ensuremath{\rightarrow}\ensuremath{\pi}\ensuremath{\pi}$ decays, and standard-model prediction. The well-understood indirect encoded quantity ${\ensuremath{\epsilon}}_{K}$ typically precludes large new-physics contributions to...
The standard analytic solution of the renormalization group (RG) evolution for $\Delta S = 1$ Wilson coefficients involves several singularities, which complicate solutions. In this paper we derive a singularity-free next-to-leading order (NLO) RG equations, greatly facilitates calculation $\epsilon_K^{\prime}$, measure direct $CP$ violation in $K\to \pi\pi$ decays. Using our new and latest lattice results hadronic matrix elements, calculate ratio $\epsilon_{K}^{\prime}/\epsilon_{K}$ (with...
Abstract. Secondary Organic Aerosols (SOAs) are formed following oxidation of Volatile Compounds (VOCs) in the atmosphere and have a significant contribution to fine particulate matter concentrations. Understanding SOA formation is crucial, particularly urban environments, where various emission sources contribute across different time scales. To decipher dynamics, this study introduces SOMA (Secondary Module for Aerosol) embedded air quality modelling. considers VOC with OH using species...
Densely populated urban areas often experience poor air quality due to high levels of anthropogenic emissions. The population is frequently exposed harmful gaseous and particulate pollutants, which are directly linked various health issues, including respiratory diseases. Accurately assessing predicting pollutant concentrations within therefore crucial. This study developed a computational fluid dynamic (CFD) model designed capture turbulence effects that influence dispersion in...
Assessing air quality in urban areas is vital for protecting public health, and low-cost sensor networks help quantify the population’s exposure to harmful pollutants effectively. This paper introduces an innovative method calibrate air-quality by combining CFD modeling with dependable AQ measurements. The developed model used simulate traffic-related PM10 dispersion a 1.6 × 2 km2 area. Hourly simulations are conducted, resulting concentrations cross-validated against high-quality By...
We argue that the Nelson-Barr solution to Strong CP Problem can be naturally realized in an E$_6$ Grand-Unified Theory. The chiral SM fermions reside three generations of fundamentals together with heavy vectorlike down quarks, leptons doublets and right-handed neutrinos. is imposed on Lagrangian broken only spontaneously at high scales, leading a mixing between fields allows solve through mechanism. main benefit GUT structure predictivity fermion sector, perfect fit all observables obtained...
Identifying unknown sources of air pollutants is vital for protecting public health, especially in cases involving the emission toxic substances. The efficiency this process depends highly on accuracy Source Term Estimation (STE) methods and availability robust measurements. Therefore, it important to examine how sensor network characteristics affect STE accuracy. This study investigates impact different configurations results a stationary point source complex, urban-like environment....
Using the recent first lattice results of RBC-UKQCD collaboration for K → ππ decays, we perform a phenomenological analysis and find discrepancy between SM prediction experiments by ∼ 3σ. We discuss an explanation new physics. The well-understood value εK , which quantifies indirect CP violation, however, typically prevents large physics contributions to . In this talk, show solution in Minimal Supersymmetric Standard Model with squark masses above 3 TeV without fine-tuning phases. solution,...
The quantities $\epsilon_K^\prime$ and $\epsilon_K$ measure the amount of direct indirect CP violation in $K\to \pi\pi$ decays, respectively. Using recent lattice results from RBC UKQCD Collaborations a new compact implementation $\Delta S=1$ renormalization group evolution we predict $ \mbox{Re}\, \frac{\epsilon_{K}'}{\epsilon_{K}} = \left(1.06 \pm 5.07 \right) \times 10^{-4}$ Standard Model. This value is $2.8\,\sigma$ below experimental \left(16.6 2.3 10^{-4}.$ In generic models physics...
The quantities $\epsilon_K^\prime$ and $\epsilon_K$ measure the amount of direct indirect CP violation in $K\to \pi\pi$ decays, respectively. Using recent lattice results from RBC UKQCD Collaborations a new compact implementation $\Delta S=1$ renormalization group evolution we predict $ \mbox{Re} \frac{\epsilon_{K}'}{\epsilon_{K}} = \left(1.06 \pm 5.07 \right) \times 10^{-4} Standard Model. This value is $2.8\,\sigma$ below experimental \left(16.6 2.3 10^{-4}. In generic models physics...