Update 1/26/11

Figure 1 shows the eta-phi distribution of the higher energy tower in pion candidates from data with decays into non-adjacent towers and reconstructed invariant mass between .1 and .4 GeV.  Figure 2 shows the same distribution for the lower energy tower.  It appears that the peak seen at ~.3 GeV is pretty well spread out over the whole barrel.  Large gaps are regions of the BSMD that are excluded because of bad status.

Figure 1: Eta-phi distribution of higher-energy towers


Figure 2: Eta-phi distribution of lower-energy towers.