High Energy Particles
High energy particles are subatomic particles that possess extremely high kinetic energy, typically measured in gigaelectronvolts (GeV) or higher. These particles are studied through cosmic ray observations and particle accelerator experiments. They originate from violent cosmic phenomena including supernovae, active galactic nuclei, pulsars, and black hole accretion events. The detection and analysis of high energy particles provides insights into fundamental physics and the extreme environments throughout the universe.
Cosmic Ray Sources
The Large High Altitude Air Shower Observatory (LHAASO) has made significant contributions to understanding high energy particle sources in the cosmos. Located on the Tibetan Plateau, LHAASO has confirmed observations of extremely powerful cosmic ray sources, detecting gamma rays and other high energy particles emanating from various astronomical objects. These observations help identify and characterize the cosmic accelerators responsible for producing particles with energies reaching petaelectronvolts (PeV) and beyond, revealing previously unknown sources of cosmic radiation in the galaxy.
Detection and Study
High energy particles are detected using ground-based observatories like LHAASO as well as space-based instruments. When cosmic rays interact with Earth’s atmosphere, they produce cascades of secondary particles called air showers, which can be measured by arrays of detectors. This observational approach allows scientists to study particles that would be impossible to produce or contain in conventional laboratory settings, making cosmic ray observations an essential complement to particle accelerator experiments in advancing our understanding of high energy physics.
Source Notes
- 2026-04-13: We Found the Most Powerful Object In the Universe
- 2026-04-30: LHC CMS Experiment Tests for Quark Substructure · ▶ source