Passive Material Simulation Validation Plots

Contact people for plots: Vivek Tiwari, Manfred Paulini, Barry Wicklund, Aidan Robson

General Information
Plots from Vivek are based on photon conversions. "Current Release" plots are 4.9.1 or 4.11.0. "Next Release" plots will include updates from Laurent Vacavant to the geometry, including removal of extraneous heat exchanger at z = 60 cm and adding a more detailed phantom layer II in copper to mimic cables. All fundamental silicon geometry information/documentation has been exhausted by Laurent, so the phantom layer II will be encoded empirically based on physics comparisons with data.

Plots from Aidan check the copper disks that were added in front of the plug, which simulate missing passive material: cables etc. PPR energy is used as the variable sensitive to early electron showering induced by the passive material in front of the plug.

Validation Plots

current release	next release	description
eps file	eps file	Lxy (Data versus Simulation) Shows comparisons between Lxy in data and simulation, after normalizing to the COT inner can. These plots are made for "ones" which means that the trigger electron and its partner extrapolate to different wedges in the calorimeter. These plots are integrated over all z. (plots from Vivek Tiwari)
eps file	eps file	Lxy in z bin (Data versus Simulation) Same comparison above made for data and simulation (4.11.0) for -45 < z < -15 cm. (plot from Vivek Tiwari)
eps file	eps file	Lxy in z bin (Data versus Simulation) Same comparison above made for data and simulation (4.11.0) for -15 < z < 15 cm. (plot from Vivek Tiwari)
eps file	eps file	Lxy in z bin (Data versus Simulation) Same comparison above made for data and simulation (4.11.0) for 15 < z < 45 cm. (plot from Vivek Tiwari)
eps file	eps file	R-Z View (Data versus Simulation) Shows comparisons in r-z view between data and simulation (4.9.1). The DATA plot is obtained after the cuts \|delta cot theta\| < 0.03 and \|Sep_xy\| < 0.15. These plots are made for "ones" which means that the trigger electron and its partner extrapolate to different wedges in the calorimeter. (plot from Vivek Tiwari)
eps file	eps file	R-Phi View (Data versus Simulation) Shows comparisons in r-phi view between data and simulation (4.9.1). The DATA plot is obtained after the cuts \|delta cot theta\| < 0.03 and \|Sep_xy\| < 0.15. These plots are made for "ones" which means that the trigger electron and its partner extrapolate to different wedges in the calorimeter. (plot from Vivek Tiwari)
eps file	eps file	R-Phi View (Data versus Simulation) Shows comparisons in r-phi between data and simulation (4.9.1). The DATA plot is obtained after the cuts \|delta cot theta\| < 0.03 and \|Sep_xy\| < 0.15. These plots are made for "twos" which means that the trigger electron and its partner extrapolate to the same wedge in the calorimeter. The point of this plot is that it reflects the 24-fold calorimeter symmetry in r-phi and gives us some idea about conversion pairs we throw away to remove the trigger bias. (plot from Vivek Tiwari)
eps file	eps file	R-Phi View (Data versus Simulation) Shows zoomed-in comparisons in r-phi between data and simulation (4.9.1). The DATA plot is obtained after the cuts \|delta cot theta\| < 0.03 and \|Sep_xy\| < 0.15. These plots are made for "ones" which means that the trigger electron and its partner extrapolate to different wedges in the calorimeter. (plot from Vivek Tiwari)
	eps file	PPR Energy vs Eta(Data versus Simulation) red shows data, green or black shows simulation. simulation on right is 5.3.0pre1 (plot from Aidan Robson)
	eps file	PPR Energy vs Total Energy(Data versus Simulation) red shows data, green or black shows simulation. ignore black curve on left plot, it is from an intermediate version of simulation. simulation on right is 5.3.0pre1 (plot from Aidan Robson)
	eps file	PPR Energy / Total Energy ratio vs Eta(Data versus Simulation) red shows data, green or black shows simulation. simulation on right is 5.3.0pre1 (plot from Aidan Robson)
	eps file	PPR Energy / Total Energy ratio vs Total Energy(Data versus Simulation) red shows data, green or black shows simulation. ignore black curve on left plot, it is from an intermediate version of simulation. simulation on right is 5.3.0pre1 (plot from Aidan Robson)

Numerical Tables

current status	next release	description

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Suggestions or contributions? Contact Ashutosh Kotwal