We present a study of the dynamical evolution of plutinos recently escaped from the resonance through numerical simulations. It was shown in previous works the existence of weakly chaotic orbits in the plutino population that diffuse very slowly finally diving into a strong chaotic region.
2010, Romina P. Di Sisto, Adrián Brunini, Gonzalo C. de Elía, “The contribution of plutinos to the Centaur population”, in Julio A. Fernández, Daniela Lazzaro, Dina Prialnik, Rita Schulz, editors, Icy Bodies of the Solar System: IAU Symposium S263, Cambridge University Press, page 89