Gamma candidate distributions using StGammaMaker

Photon P_{T ,} Eta ,Phi and Z vertex 

     Photon p_T distribution sorted into different preshower bins

 Photon candidate XY position in different preshower bins

Photon candidate XY position (left) and vertex XY(right)              

Tower and track multiplicty

Number of hits in the u and v plane 

Isolation Energy Sums 

Isolation Energy Sum (left) and Photon Eta Phi coverage (right)