Random walk on Sierpinski-type multifractals

A method is established which allows the calculation of the walk dimension for Sierpinski-type multifractals. The multifractal scaling behaviour of the average time needed to cover a distance in the mentionned multifractals is shown. For the average-time-multifractal we calculate the Renyi dimensions and allpy the f(alpha)-formalism.Comment: 9 pages, Postscrip

Twenty Years of Diffraction at the Tevatron

Results on diffractive particle interactions from the Fermilab Tevatron pbar-p collider are placed in perspective through a QCD inspired phenomenological approach, which exploits scaling and factorization properties observed in data. The results discussed are those obtained by the CDF Collaboration from a comprehensive set of single, double, and multigap soft and hard diffraction processes studied during the twenty year period since 1985, when the CDF diffractive program was proposed and the first Blois Workshop was held.Comment: 6 pages, Presented at EDS-2005, XIth International Conference on Elastic and Diffractive Scattering, Chateau de Blois, France, 15-20 May 200