1287_Physics ProblemsTechnical Physics

1287_Physics ProblemsTechnical Physics - 628 P46.23...

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628 Particle Physics and Cosmology P46.23 (a) πη +→ p 2 violates conservation of baryon number as 0 1 0 , not allowed . (b) K n −− +→ + Λ 0 π Baryon number, 0 1 1 0 +→+ Charge, −+ → − 10 01 Strangeness, −+ →−+ 10 Lepton number, 0 0 The interaction may occur via the strong interaction since all are conserved. (c) K →+ ππ 0 Strangeness, −→ + 100 Baryon number, 00 Lepton number, 0 0 Charge, −→−+ 11 0 Strangeness is violated by one unit, but everything else is conserved. Thus, the reaction can occur via the weak interaction , but not the strong or electromagnetic interaction.
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