Before revision:  For negligible drift term, the inverse mean square deviation \b{eta from the FP model follows a power law with exponent values between -1.25 and -1.48 indicating superdiffusion.
After revision:  For negligible drift term, the inverse mean square deviations (betaFP) from the FP model follows a power law with exponent values between -1.25 and -1.48 indicating superdiffusion.