Introduction To Elementary Particles Solutions Manual Griffiths May 2026

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

1.3 The antiparticle of the electron $e^{-}$ is the positron $e^{+}$.

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

5.1 The quark content of the proton is $uud$.

9.2 The gauge group of QCD is $SU(3)$.

2.1 The first particle accelerator was built in 1930 by Cockcroft and Walton.

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

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