StefanoSpataro Messages: 2736 Registered: June 2005 Location: Torino
first-grade participant
From: *ip112.fastwebnet.it
I suppose there is some bug in the part correlated to the lambda disk, which was never official tested for reconstruction.
I suggest to check with single particles reaching the lambda disk, and compare results with and without the disk. I presume the disk affects only forward tracks, isn't it? Your D events are too much complicated to understand what could go wrong.