Self-Organized Electro-Plasmonic Resonator Model for Ball Lightning Phenomena

This repository contains the manuscript and supporting files for a quantitative model of ball lightning as an electro-plasmonic resonator. The work presents: Analytical formulas for nanoparticle polarizability, effective medium permittivity, resonance conditions, stored energy, and radiative losses. Representative numerical examples illustrating resonance wavelengths, linewidths, and quality factors (Q-factors) using realistic physical parameters. A reproducible Python script (resonance_FWHM.py) that computes numerical resonance wavelengths, absorption-like peaks, FWHM, and Q-factors for metallic nanoparticles in a dielectric plasma environment.