Uncovering temporal transitions and self-organization during slow aging of dense granular media in the absence of shear bandsDavid M. Walker, Antoinette Tordesillas, Jie Ren, Joshua A. Dijksman and Robert P. BehringerEPL, 107 1 (2014) 18005DOI: https://doi.org/10.1209/0295-5075/107/18005