title: Avalanche structure in a running sandpile model.
abstract: The probability distribution function of the avalanche size in the sandpile model does not verify strict self-similarity under changes of the sandpile size. Here we show the existence of avalanches with different space-time structure, and each type of avalanche has a different scaling with the sandpile size. This is the main cause of the lack of self-similarity of the probability distribution function of the avalanche sizes, although the boundary effects can also play a role.
authors.affiliation: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-8070, USA.
authors.forename: B A
authors.initials: BA
authors.lastname: Carreras
authors.forename: V E
authors.initials: VE
authors.lastname: Lynch
authors.forename: D E
authors.initials: DE
authors.lastname: Newman
authors.forename: R
authors.initials: R
authors.lastname: Sanchez