1 / 6

dE/dx in the ITS

dE/dx in the ITS. Current status/experience General considerations. Marco van Leeuwen, Utrecht University. dE/dx performance. Truncated mean Lowest 50% of points. Standalone. Global tracks. Tracks with 3, 4 points. Resolution 10-15%

arlo
Download Presentation

dE/dx in the ITS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. dE/dx in the ITS Current status/experience General considerations Marco van Leeuwen, Utrecht University

  2. dE/dx performance Truncated mean Lowest 50% of points Standalone Global tracks Tracks with 3, 4 points Resolution 10-15% Worse for standalone tracking than combined tracking (effect of mom resolution)

  3. SDD calibration Drift time dependence Module by module Calibration precision ~1% rather straightforward

  4. SSD Calibration P vs N calibration Module by module P-N asymmetry due to asymmetric shaper voltage (corrected by now) Detector response relativelyuniform before calibration Calibration to ~1% rather straightforward

  5. Comparison to TPC ITS ITS TPC • Proton peakoff scale TPC resolution ~5% much better than ITS ~12% (more samples)

  6. Final comments • ITS PID performs well • Calibration straightforward, stable • Resolution close to MC-expected • NB: most of pT-reach overlaps with TPC • ITS dE/dx mostly niche application: low pT, standalone tracking

More Related