Step-by-Step KaTeX Derivation & Detailed Explanation
### Step-by-Step Derivation & Verification: 1. **Standard Model Classification**: - **Hadrons**: Bound states of quarks possessing color charge; participate in strong interactions mediated by gluons. - Baryons ($qqq$): Proton ($uud$), Neutron ($udd$) - Mesons ($q\bar{q}$): $\pi^0 (u\bar{u} - d\bar{d})/\sqrt{2}$ - **Leptons**: Colorless point-like fermions ($e^-, \mu^-, \tau^-, \nu_e, \nu_\mu, \nu_\tau$). 2. **Interaction Matrix**: Leptons carry zero color charge and are therefore completely immune to the strong nuclear interaction. 3. **Conclusion**: The muon ($\mu^-$) does not experience the strong interaction. Option (A) is correct.