Operation and performance of the CMS silicon strip tracker with proton-proton collisions at the CERN LHC
Journal Article
Overview
abstract
Abstract; Salient aspects of the commissioning, calibration, and; performance of the CMS silicon strip tracker are discussed, drawing; on experience during operation with proton-proton collisions; delivered by the CERN LHC. The data were obtained with a variety; of luminosities. The operating temperature of the strip tracker was; changed several times during this period and results are shown as a; function of temperature in several cases. Details of the system; performance are presented, including occupancy, signal-to-noise; ratio, Lorentz angle, and single-hit spatial resolution. Saturation; effects in the APV25 readout chip preamplifier observed during early; Run 2 are presented, showing the effect on various observables and; the subsequent remedy. Studies of radiation effects on the strip; tracker are presented both for the optical readout links and the; silicon sensors. The observed effects are compared to simulation,; where available, and they generally agree well with expectations.
