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In the framework of recently introduced frustrated lattice gas models, westudy the out of equilibrium dynamical processes during the compaction processin granular media. We find irreversible-reversible cycles in agreement withrecent experimental observations. Moreover in analogy with the phenomenology ofthe glass transition we find aging effects during the compaction process Inparticular we find that the two time density correlation function $C(t,t')$asymptotically scales as a function of the single variable $\ln(t')/\ln(t)$.This result is interpreted in terms of multiscaling properties of the system.Comment: 4 page

Aging in Out-of-Equilibrium Dynamics of Models for Granular Media