Chapter 44, Problem 44.24E

(a)

To determine

Whether the reaction $\text{p}+\text{p}\to \text{p}+{\text{e}}^{+}$ obey the conservation of baryon number or not.

(b)

To determine

Whether the reaction $\text{p}+\text{n}\to 2{\text{e}}^{+}+{\text{e}}^{-}$ obey the conservation of baryon number or not.

(c)

To determine

Whether the reaction $\text{p}\to \text{n}+{\text{e}}^{-}+\overline{{\nu }_{\text{e}}}$ obey the conservation of baryon number or not.

(d)

To determine

Whether the reaction $\text{p}+\overline{\text{p}}\to 2\gamma$ obey the conservation of baryon number or not.