| Answer | Crossword Clue |
|---|---|
| GLUON | Particle emitted by a quark |
| MESON | Particle containing a quark |
| MESON | Particle in a quark model |
| MESON | Particle composed of a quark and an antiquark |
| GAMMA | Kind of ray emitted by a supernova |
| MUON | Particle created by a cosmic ray |
