E_reco / E_mc vs. eta

Legend

• black curve: before EEMC slow simulator
• red curve: after EEMC slow simulator

Jason's Monte Carlo

• 4.4k single gamma's
• No SVT
• Nominal vertex
• Flat in pt 4-12 GeV

Will's Monte Carlo

• 10k single gamma's
• SVT/SSD out
• Vertex at 0
• Flat in pt 5-60 GeV

In the plot below, I use the energy of the single tower (tower with max energy) presumably the tower the photon hit. The nonlinearity seems to disappear.

In the plot below, I use the energy of the 3x3 cluster of tower centered around the tower with the max energy. The nonlinearity is restored.

The plot below shows E_tower/E_cluster vs. eta where the cluster consists of 3x3 towers centered around the max energy tower.

Below is the profile of E_tower/E_cluster vs. eta.

The plot below shows the energy sampled by the entire calorimeter as a function of eta, i.e. sampling fraction as a function of eta.

Sampling fraction integrated over all eta's.