Precision measurements of the timelike electromagnetic form factors of pion, kaon, and proton

Using 20.7 pb{sup -1} of e{sup +}e{sup -} annihilation data taken at {radical}(s)=3.671 GeV with the CLEO-c detector, precision measurements of the electromagnetic form factors of the charged pion, charged kaon, and proton have been made for timelike momentum transfer of |Q{sup 2}|=13.48 GeV{sup 2} by the reaction e{sup +}e{sup -}{yields}h{sup +}h{sup -}. The measurements are the first ever with identified pions and kaons of vertical bar Q{sup 2} vertical bar>4 GeV{sup 2}, with the results F{sub {pi}}(13.48 GeV{sup 2})=0.075{+-}0.008(stat){+-}0.005(syst) and F{sub K}(13.48 GeV{sup 2})=0.063{+-}0.004(stat){+-}0.001(syst). The result for the proton, assuming G{sub E}{sup p}=G{sub M}{sup p}, is G{sub M}{sup p}(13.48 GeV{sup 2})=0.014{+-}0.002(stat){+-}0.001(syst), which is in agreement with earlier results.