# Where to find experimental/theoretical value of (charge) radius of particles?

Where to find experimental/theoretical value of (charge) radius of particles like proton, neutron, $pi^+$, etc. ?

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 PDG doesn't have it. – Problemania Nov 12 '11 at 19:25 I found $\pi^+$ charge radius instantly. pdglive.lbl.gov/… in the bottom of the page. – firtree May 12 at 12:21