Elastic electron proton scattering has been used to check the validity of the dipole fit of the proton form factors at momentum transfer between 0.05 and 0.30 (GeV/ c ) 2 . The general behaviour of the cross sections is in agreement with previous measurements and is close to the dipole predictions but there is the suggestion of some small amplitude deviations. It is speculated that these deviations may be related to similar effects in the proton formfactor derived from the ISR pp elastic scattering data via a Chou-Yang model.
D(SIG(N=DIPOLE))/D(OMEGA) is cross-section derived in the assumption that both the magnetic and electric form - factors of the proton can be expressed by the dipole formula G(q**2) = 1/(1 + q**2/0.71)**2. Data are read from graph by BVP.
D(SIG(N=DIPOLE))/D(OMEGA) is cross-section derived in the assumption that both the magnetic and electric form - factors of the proton can be expressed by the dipole formula G(q**2) = 1/(1 + q**2/0.71)**2. Data are read from graph by BVP.
Results of fit of the combined data samples of Table 1 and Table 2. Data points was fitted by formula A + B*q**2 + C*sin(OMEGA*q**2 + PHI).
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