Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evolution of dynamical facilitation approaching the granular glass
  transition   We investigate the relaxation dynamics of a dense monolayer of bidisperse
beads by analyzing the experimental data previously obtained in a fluidized
bed. We show that the dynamics is formed by elementary relaxation events called
cage jumps. These aggregate on a very short time into clusters. Increasing the
packing fraction makes the spatio-temporal organization of the clusters evolve
from a rather scattered and random distribution towards a collection of sparse
and large events, called avalanches. The avalanche process is a manifestation
of dynamical facilitation. The study of its evolution with density reveals that
dynamical facilitation becomes less conserved and play a lesser role for the
structural relaxation approaching the granular glass transition.

30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex