In particle physics the semileptonic decay of a hadron refers to a decay through the weak interaction in which one lepton (and the corresponding neutrino) is produced in addition to one or more hadrons.
An example of a semileptonic decay is
-
- K0 → e− + ν
e + π+
- K0 → e− + ν
This is to be contrasted with purely hadronic decays, such as K0 → π+ + π−, which are also mediated by the weak force.
Semileptonic decays of neutral kaons have been used to study kaon oscillations.
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