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Unformatted text preview: 16. (a) Referring to Tables 453 and 454, we ﬁnd the strangeness of K0 is +1, while it is zero for both π +
and π − . Consequently, strangeness is not conserved in this decay; K0 → π + + π − does not proceed
via the strong interaction.
(b) The strangeness of each side is −1, which implies that the decay is governed by the strong interaction.
(c) The strangeness or Λ0 is −1 while that of p+π − is zero, so the decay is not via the strong interaction.
(d) The strangeness of each side is −1; it proceeds via the strong interaction. ...
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 Fall '08
 SPRUNGER
 Physics

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