| Answer | Crossword Clue |
|---|---|
| GLUON | Particle emitted by a quark |
| scintillation | A small flash of visible or ultraviolet light emitted by fluorescence in a phosphor when struck by a charged particle or high-energy photon |
| scintillations | A small flash of visible or ultraviolet light emitted by fluorescence in a phosphor when struck by a charged particle or high-energy photon |
| MESON | Particle containing a quark |
| MESON | Particle in a quark model |
| MESON | Particle composed of a quark and an antiquark |
| upsilons | A meson thought to contain a b quark bound to its antiparticle, produced in particle accelerators |
