Rates in the calorimeter

In this note, I try to show what could be the pileup problems in the LHCB calorimeters , using 500 minimum bias events generated by A.Tsaregorodtsev and analysed with the version 114 of SICB. Studied were minimum bias events, but the results are generally the same for B events. Hot zones were found near the hole in the bending plane, both for the em and the hcal calorimeters; they come from high energy pions emitted near 0 degrees. Mean values of energy per cell and per 2*2 clusters are given, and mean values of track numbers in front of the preshower as well. Acknowledgements to A.Tsaregodtsev and I.Korolko for their help in processing data, and to J.Lefrancois for reading and criticizing this report.1