| Answer | Crossword Clue |
|---|---|
| PION | Two-quark particle |
| MESON | Quark model particle |
| GLUON | Quark-binding particle |
| MESON | Particle containing a quark |
| MESON | Quark-plus-antiquark particle |
| GLUON | Particle emitted by a quark |
| MESON | Particle in a quark model |
| MESON | Particle composed of a quark and an antiquark |
| MESON | Subatomic particle composed of one quark and one antiquark |
