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Elementary Particles

Problem 6.306

A hydrogen target is bombarded by pions. Calculate the threshold values of kinetic energies of these pions making possible the following reactions: (a) π−+p→K++Σ−\pi^{-}+p \rightarrow K^{+}+\Sigma^{-} (b) π0+p→K++Λ0\pi^{0}+p \rightarrow K^{+}+\Lambda^{0}.

Reveal Answer
 (a) 0.90GeV; (b) 0.77GeV . \text { (a) } 0.90 \mathrm{GeV} ; \text { (b) } 0.77 \mathrm{GeV} \text { . }
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