Search
Results
-
Performance of reconstruction and identification of 𝜏 leptons decaying to hadrons and 𝜈𝜏 in pp collisions at √s=13 TeV
(2018)Journal of InstrumentationThe algorithm developed by the CMS Collaboration to reconstruct and identify τ leptons produced in proton-proton collisions at √s=7 and 8 TeV, via their decays to hadrons and a neutrino, has been significantly improved. The changes include a revised reconstruction of π0 candidates, and improvements in multivariate discriminants to separate τ leptons from jets and electrons. The algorithm is extended to reconstruct τ leptons in highly ...Journal Article -
Performance of the CMS muon detector and muon reconstruction with proton-proton collisions at √s=13 TeV
(2018)Journal of InstrumentationThe CMS muon detector system, muon reconstruction software, and high-level trigger underwent significant changes in 2013–2014 in preparation for running at higher LHC collision energy and instantaneous luminosity. The performance of the modified system is studied using proton-proton collision data at center-of-mass energy √s=13 TeV, collected at the LHC in 2015 and 2016. The measured performance parameters, including spatial resolution, ...Journal Article -
Precision measurement of the structure of the CMS inner tracking system using nuclear interactions
(2018)Journal of InstrumentationThe structure of the CMS inner tracking system has been studied using nuclear interactions of hadrons striking its material. Data from proton-proton collisions at a center-of-mass energy of 13 TeV recorded in 2015 at the LHC are used to reconstruct millions of secondary vertices from these nuclear interactions. Precise positions of the beam pipe and the inner tracking system elements, such as the pixel detector support tube, and barrel ...Journal Article