👉 The CMS (Compact Muon Solenoid) Electromagnetic Spectrometer is a particle physics detector designed to study the properties of fundamental particles, particularly photons and electrons, at CERN's Large Hadron Collider (LHC). It consists of a superconducting solenoid that traps and focuses charged particles, allowing scientists to measure their energy, momentum, and charge with high precision. The CMS detector is crucial for discovering new particles and understanding the fundamental forces of nature, including the Higgs boson. It comprises multiple layers of sensors and calorimeters that capture and analyze the interactions of these particles, providing valuable data for theoretical physicists to test and refine their models.