Nico presented the status of signal reconstruction and PID with HMPID.

The backward track propagation (in TPC) includes the possibility to
add a new point to the track. This is important and can give 50%
better reconstruction (CLEO report). 

Since the yield of the particles depends on the centrality, the method
works on a given class of events. 

20% of the particles produce no MIP in the RICH. 

Guy. General question - when you talk about the Lambdas, could you
think also about embedding protons? The result should be the same. 

Using the Lambda has the advantage that the tracks are reconstructed
in the experiment. Question about the calibration and alignment are
taken into account automatically. The problem is in the limited
statistics.