Then we smear them with a gaussian to obtain x'

So we have a new point in local frame that we translate into global again.

It appears that for 4 ladders, X = x'

The transformation (roatation) gives the same coordinates for those hits

These ladders are ladder 1 ,6 ,11 and 16 , exactly located at the top, right, bottom and left part in the ssd barrel.

Figure 1 : with ladders 1,6,11,16 | Figure 2 : without ladders 1,6,11,16 |

Jonathan Bouchet Last modified: Thu Aug 23 17:36:25 CEST 2007