Answer: Symmetry breaking occurs in the electroweak theory
Chapter 10, Problem 49GP(choose chapter or problem)
Which of the following reactions are possible, and by what interaction could they occur? For those forbidden, explain why.
(a) \(\pi^{-}+\mathrm{p} \rightarrow \mathrm{K}^0+\mathrm{p}+\pi^0\)
(b) \(\mathrm{K}^{-}+\mathrm{p} \rightarrow \mathrm{\Lambda}^0+\pi^0\)
(c) \(\mathrm{K}^{+}+\mathrm{n} \rightarrow \Sigma^{+}+\pi^0+\gamma\)
(d) \(\mathrm{K}^{+} \rightarrow \pi^0+\pi^0+\pi^{+}\)
(e) \(\pi^{+} \rightarrow \mathrm{e}^{+}+\nu_{\mathrm{e}}\)
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