Question: Hadronic strangeness-changing weak decays approximately obey the ÎI = 1/2 rule, that is the total isospin changes by 1/2 in the decay. By adding a

Hadronic strangeness-changing weak decays approximately obey the Î”I = 1/2 rule, that is the total isospin changes by 1/2 in the decay. By adding a fictitious strangeness zero I = 1/2 boson S in the initial state, find the prediction of this rule for the ratio

Г(Е — Л+ т) R = Г(Е0 — Л + то)

assuming that the state |Îž⁰, S^€‘] is an equal mixture of states with I = 0 and I = 1.

( + ) R = (0 + )

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