Crossword Clue:

Quark binding particle

AnswerCrossword Clue
GLUONQuark-binding particle
MESONQuark model particle
PIONTwo-quark particle
MESONParticle containing a quark
MESONQuark-plus-antiquark particle
GLUONParticle emitted by a quark
MESONParticle in a quark model
MESONParticle composed of a quark and an antiquark
MESONSubatomic particle composed of one quark and one antiquark