Y.Miake, Univ. of Tsukuba
13
Empirical analysis of energy loss
l
S
loss
from the
p
T
averaged
R
AA
.
l
20 % energy loss
in central.
l
S
loss
prop.
N
part
2/3
implies
S
loss
prop.
L
2
.
Phenix, nucl-ex/0410003
Simple geometry
w. 1D expansion
So far, data are shown for charged particles or pi-zero’s only
Particle identification is