File talk:Proton decay4.svg

Confused
Could someone add some more explanation to the diagram? What is UC? An anti-up quark? An up quark makes more sense.... doesn't it?--Michael C. Price talk 19:37, 13 April 2010 (UTC)

The image this was copied from has the up quark arrows reversed. So this version is definitely wrong. --Michael C. Price talk 19:33, 14 April 2010 (UTC)