The particle reaction $\pi ^ { + } + \mathrm { p } \rightarrow \Sigma ^ { + } + \pi ^ { 0 }$ cannot occur because
A)electric charge is not conserved.
B)strangeness is not conserved.
C)baryon number is not conserved.
D)all of the above are not conserved.
E)both (a)and (b)above are not conserved.

Question

Quizplus · Accepted Answer

Both electric charge and strangeness are not conserved in the reaction.

The Particle Reaction π++p→Σ++π0\pi ^ { + } + \mathrm { p } \rightarrow \Sigma ^ { + } + \pi ^ { 0 }π++p→Σ++π0

The Particle Reaction $\pi ^ { + } + \mathrm { p } \rightarrow \Sigma ^ { + } + \pi ^ { 0 }$