Semileptonic decay
# Semileptonic decay

In particle physics the semileptonic decay of a hadron is a decay caused by the weak force in which one lepton (and the corresponding neutrino) is produced in addition to one or more hadrons. An example for this can be

       $K^0$ → $e^−$ + ν $_e$ + $π^+$

This is to be contrasted with purely hadronic decays, such as $K^0$ → $π^+$ + $π^−$ , which are also mediated by the weak force.

Semileptonic decays of neutral kaons have been used to study kaon oscillations.

