Approved Combined Inner Detector Plots

Introduction

The Inner Detector commissioning and performance plots below are approved to be shown by ATLAS speakers at conferences and similar events.

Please do not add figures on your own. Contact the ID project leader in case of questions and/or suggestions.

Figures

Residual distribution in x, integrated over all hits-on-tracks in the pixel barrel for the nominal geometry and the preliminary aligned geometry. The residual is defined as the measured hit position minus the expected hit position from the track extrapolation. Shown is the projection onto the local x coordinate, which is the precision coordinate. Tracks are selected to have pT > 2 GeV, |d0|<50mm, |z0|<400mm (in other words they are required to go through the pixel L0). The distribution is shown for 5 cosmic runs: 91885, 91888, 91890, 91891, 91900, all have solenoid on - corresponding to ~25% of all the solenoid-on data taken in Sep/Oct 2008. New Tracking is used with material interactions-on (in 14.5.0). A double Gaus fit is performed but only the mean and sigma of the narrower Gaus are shown.
Residual distribution in y, integrated over all hits-on-tracks in the pixel barrel for the nominal geometry and the preliminary aligned geometry. The residual is defined as the measured hit position minus the expected hit position from the track extrapolation. Shown is the projection onto the local y coordinate, which is the non-precision coordinate. Tracks are selected to have pT > 2 GeV, |d0|<50mm, |z0|<400mm (in other words they are required to go through the pixel L0). The distribution is shown for 5 cosmic runs: 91885, 91888, 91890, 91891, 91900, all have solenoid on - corresponding to ~25% of all the solenoid-on data taken in Sep/Oct 2008. New Tracking is used with material interactions-on (in 14.5.0). A single Gaus fit is performed.
Residual distribution in x, integrated over all hits-on-tracks in the SCT barrel for the nominal geometry and the preliminary aligned geometry. The residual is defined as the measured hit position minus the expected hit position from the track extrapolation. Shown is the projection onto the local x coordinate, which is the precision coordinate. Tracks are selected to have pT > 2 GeV, |d0|<50mm, |z0|<400mm (in other words they are required to go through the pixel L0). The distribution is shown for 5 cosmic runs: 91885, 91888, 91890, 91891, 91900, all have solenoid on - corresponding to ~25% of all the solenoid-on data taken in Sep/Oct 2008. New Tracking is used with material interactions-on (in 14.5.0). A double Gaus fit is performed but only the mean and sigma of the narrower Gaus are shown.
Cosmic spectra (d0 distribution) as seen in run 91890 compared to MC. The remaining differences between Data and MC are due to trigger effects.	eps figure
Cosmic spectra (z0 distribution) as seen in run 91890 compared to MC. The remaining differences between Data and MC are due to trigger effects.	eps figure
Cosmic spectra (phi0 distribution) as seen in run 91890 compared to MC. The remaining differences between Data and MC are due to trigger effects.	eps figure
Cosmic spectra (theta0 distribution) as seen in run 91890 compared to MC. The remaining differences between Data and MC are due to trigger effects.	eps figure
Cosmic spectra (QoverP distribution) as seen in run 91890 compared to MC. The remaining differences between Data and MC are due to trigger effects.	eps figure
Collected track statistics in autumn 2008:   field off field on total All tracks 4940000 2670000 7610000 SCT hit 1150000 880000 2030000 Pixel hit 230000 190000 420000	pdf figure
Inner detector event display for event 757427 of the cosmic run 90270 with field ON.
Inner detector event display for event 62340 of the cosmic run 90731 (no Solenoid). Showing hits on track for both TRT endcaps, as well as SCT and pixel barrel and endcap hits.
Figure description ...	figure

Links

• Inner Detector tracking performance Wiki
• Inner Detector software Wiki