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Homework Statement
One of the following equations represent a possible decay of the K + kaon.
K+ → π+ + π0
K+ → μ+ + νμ
State, with a reason, which one of these decays is not possible.
The Attempt at a Solution
At first i thought the first decay was not possible, however, i recently learned that strange quarks decay into other quarks ( I am aware that a +kaon is made up of and up quark and anti-strange quark). I say other quarks because I'm not sure which either a strange quark or anti-strange quark decay into. After some further calculations i realized that the second decay is not possible as lepton numbers are not conserved.
So request is, could i have some information on strange quark decay at an A level standard. For some reason i can't find anything in my textbook.