CUET Preparation Today
$\pi$ mesons can be |
$\pi^+$ or $\pi^-$ $\pi^+$ or $\pi^0$ $\pi^-$ or $\pi^0$ $\pi^+$ , $\pi^-$ or $\pi^-$ |
$\pi^+$ , $\pi^-$ or $\pi^-$ |
$p \rightarrow \pi^{+}+n, \quad n \rightarrow p+\pi^{-}$ and $n \rightarrow n^{\prime}+\pi^0$ |
