How Cosmic-ray Protons Make Gamma rays
- Visualizations by:
- Scott Wiessinger
- View full credits
In the simplest and most common interaction, a cosmic-ray proton strikes another proton. The protons survive the collision, but their interaction creates an unstable particle — a pion — with only 14 percent the mass of a proton. In 10 millionths of a billionth of a second, the pion decays into a pair of gamma-ray photons. More complex scenarios occur when cosmic-ray protons strike nuclei containing greater numbers of particles.
Please give credit for this item to:
NASA/Goddard Space Flight Center
- Scott Wiessinger (KBRwyle) [Lead]
- Francis Reddy (University of Maryland College Park)
- Scott Wiessinger (KBRwyle)
MissionsThis visualization is related to the following missions:
SeriesThis visualization can be found in the following series:
You may also like...