Introduction To Elementary Particles Solutions Manual Griffiths 〈EASY →〉

6.1 The quark model predicts the existence of baryons and mesons.

7.2 The $W$ and $Z$ bosons mediate the weak interaction.

2.2 The concept of the neutrino was first proposed by Pauli in 1930.

7.1 The weak interaction is responsible for $\beta$ decay.