PHOBOS experiment Au+Au at 130 GeV
Ratio of (dN/deta')/<Npart/2> non-central(35-40%)/central(0-6%)

                    90% C.L.
                    syst.
   eta'     ratio   error (+/-)
   ---      -----   -----------
 -2.83867   0.8757  0.0484
 -2.63867   0.8842  0.0505
 -2.43867   0.8980  0.0480
 -2.23867   0.9063  0.0547
 -2.03867   0.9124  0.0488
 -1.83867   0.9552  0.0669
 -1.63867   0.9841  0.0638
 -1.43867   1.0097  0.0620
 -1.23867   1.0312  0.0569
 -1.03867   1.0881  0.0553
 -0.83867   1.1162  0.0720
 -0.63867   1.1481  0.0654
 -0.43867   1.2555  0.1103
 -0.23867   1.4290  0.1002
 -0.03867   1.6034  0.1016
  0.16133   1.8041  0.1076
  0.36133   2.0070  0.2279