PoS - Proceedings of Science
Volume 420 - 10th International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (Pixel2022) - Radiation Damage Studies
Simulated Performance and Calibration of CMS Phase-2 Upgrade Inner Tracker Sensors
T.A. Vami*, M. Swartz  on behalf of the CMS Collaboration
Full text: pdf
Pre-published on: March 13, 2023
Published on: May 08, 2023
The next upgrade of the Large Hadron Collider (LHC) is planned from 2026 when the collider will move to its High Luminosity phase (HL-LHC). The CMS detector needs to be substantially upgraded during this period to exploit the fourfold increase in luminosity provided by the HL-LHC. This upgrade is referred to as the CMS Phase-2 Upgrade. A program of laboratory and beam test measurements, and performance studies based on the detailed simulation of the detector was carried out to support the decision of the technology of the sensors to be adopted in the different regions of the detector for the Phase-2 Upgrade. Among the various options considered, CMS chose to use 3D sensors with a 25 $\times$ 100 $\mu$m$^2$ pixel cell in the innermost layer of the barrel and planar sensors with a 25 $\times$ 100 $\mu$m$^2$ pixel cell elsewhere. In this paper, we detail the simulation studies that were carried out to choose the best sensor design. These studies include a detailed standalone simulation of the sensors made with PixelAV and the expected performance on high level observables obtained with the simulation and reconstruction software of the CMS experiment.
DOI: https://doi.org/10.22323/1.420.0045
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