Introduction To Elementary Particles Solutions Manual Griffiths Apr 2026

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

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

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

5.2 The quark content of the neutron is $udd$.

2.3 The $\pi$ meson was discovered in 1947 by Cecil Powell.

9.1 The gauge group of QED is $U(1)$.

6.2 The quark model explains the hadronic spectrum.