The Student Room Group

Kaon production, Weak and strong interaction

My textbook says kaons are produced in the strong interaction and decay through the weak interaction.

Is it true that they always exclusively are produced through the strong and always decay through the weak?

Furthermore how could strangeness be conserved when kaons are produced? If the strong interaction requires strangeness to be conserved then surely a singular kaon couldn’t be produced?
Reply 1
Hi
yes strangeness is only produced and conserved in strong interaction and to conserve it, its always created in pair particles. In the weak interaction they decay and strangeness doesnt need to be conserved.
Original post by klickzer
Hi
yes strangeness is only produced and conserved in strong interaction and to conserve it, its always created in pair particles. In the weak interaction they decay and strangeness doesnt need to be conserved.


Why couldn’t a kaon be produced through the weak interaction from hadrons or leptons?
Furthermore why couldn’t something like a sigma plus decay into a (-)kaon, 2 protons and 2 antineutrons through strong interaction? Charge and baryon number are conserved, and strangeness doesn’t change so surely it could decay through the strong interaction?

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