A Feynman Diagram of the most common of Muon Decays.
<ul><li><a href="//commons.wikimedia.org/wiki/File:Muon_Decay.png" title="File:Muon Decay.png">Muon Decay.png</a>: <a href="//commons.wikimedia.org/wiki/User:Thymo" title="User:Thymo">Thymo</a> / derivative work: <a href="//commons.wikimedia.org/wiki/User:Sgbeer" title="User:Sgbeer">Sgbeer</a></li></ul>
<ul><li><a href="//commons.wikimedia.org/wiki/File:Muon_Decay.png" title="File:Muon Decay.png">Muon Decay.png</a></li></ul>