PoS - Proceedings of Science
Volume 282 - 38th International Conference on High Energy Physics (ICHEP2016) - Poster Session
CMS detector tracking performance in Run-II
E. Brondolin
Full text: pdf
Pre-published on: February 06, 2017
Published on: April 19, 2017
Abstract
Since the start of Run-II in June 2015, LHC has delivered pp collisions at a center of mass energy of 13 TeV and with a bunch time separation of 25 ns. On avarage, more than 25 inelastic collisions are superimposed on the event of interest. Under these new conditions, the CMS collaboration has re-calibrated and verified the performance of the whole detector. In particular, the CMS tracking performance has been measured both directly and indirectly. Direct measurements are, among others, the beam spot determination, the vertex resolution and the muon reconstruction efficiency with the tag and probe technique. An indirect assessment can be given by the pion reconstruction efficiency and the low-mass resonance parameters as a function of different single track kinematics.
DOI: https://doi.org/10.22323/1.282.1167
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