CERN Accelerating science

CMS Detector Performance Summaries

HF and HEP17: phase1 upgrade performances /CMS Collaboration
HF and HEP17: phase1 upgrade performances with pp collision
CMS-DP-2017-042; CERN-CMS-DP-2017-042.- Geneva : CERN, 2017 - 8 p. Fulltext: PDF;

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Level-1 muon trigger performance in 2017 data and comparison with the legacy muon trigger system /CMS Collaboration
This document describes the performance of the CMS Level-1 muon trigger using data collected during 2017. The efficiency is greater than 90\% for the dataset considered. [...]
CMS-DP-2017-041; CERN-CMS-DP-2017-041.- Geneva : CERN, 2017 - 22 p. Fulltext: PDF;

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Level-1 jets and energy sums trigger performance with part of the 2017 dataset /CMS Collaboration
After the first long shutdown, the LHC has restarted at a centre-of-mass energy of 13 TeV. The LHC is expected to achieve an instantaneous luminosity larger than $10^{34} cm^{-2}s^{-1}$ and an average peak number of pile-up interactions of at least 40. [...]
CMS-DP-2017-040; CERN-CMS-DP-2017-040.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF;

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Beamspot Measurements in 2016 /CMS Collaboration
Beamspot Measurements in 2016
CMS-DP-2016-051; CERN-CMS-DP-2016-051.- Geneva : CERN, 2016 - 8 p. Fulltext: PDF;

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Beam-Beam effects at the CMS BRIL van-der-Meer scans /CMS Collaboration
The CMS Beam Radiation Instrumentation and Luminosity Project (BRIL) is devoted to the simulation and measurement of luminosity, beam conditions and radiation fields in the CMS Experiment at CERN. The project is engaged in operating and developing new detectors, compatible with the high luminosity experimental environments at the LHC. [...]
CMS-DP-2017-039; CERN-CMS-DP-2017-039.- Geneva : CERN, 2017 - 6 p. Fulltext: PDF;

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Jet$\to$Tau Misidentification Probability with 2016 pp collision data at $\sqrt{s}$=13 TeV /CMS Collaboration
The jet to tau misidentification probability for W+Jet events has been summarised in the note. The analysis is performed with the LHC 13 TeV pp collision data collected by the CMS detector in the year 2016..
CMS-DP-2017-036; CERN-CMS-DP-2017-036.- Geneva : CERN, 2017 - 14 p. Fulltext: PDF;

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Commissioning studies on the Phase I pixel detector of CMS in early 2017 proton-proton collisions at 13 TeV /CMS Collaboration
Algorithms that identify jets originating from heavy (bottom or charmed) hadrons rely heavily on the reconstruction of charged particle tracks inside those jets. Recently the innermost part of the CMS tracking detector, also referred to as the Pixel detector, was extended with a fourth layer which is located closer to the beampipe. [...]
CMS-DP-2017-037; CERN-CMS-DP-2017-037.- Geneva : CERN, 2017 Fulltext: PDF;

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Event displays with heavy flavour jets from 2016 CMS data /CMS Collaboration
A broad range of physics analyses at CMS rely on the efficient identification of heavy flavour jets. Identification of these objects is a challenging task, especially in the presence of a large number of multiple interactions per bunch crossing. [...]
CMS-DP-2017-032; CERN-CMS-DP-2017-032.- Geneva : CERN, 2017 - 11 p. Fulltext: PDF;

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Noise in Phase 1 HF detector in 2017 /CMS Collaboration
In this note we present the distributions of the TDC and the charge asymmetry in Phase 1 HF detector, which are used to reject noise hits..
CMS-DP-2017-034; CERN-CMS-DP-2017-034.- Geneva : CERN, 2017 - 5 p. Fulltext: PDF;

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HCAL Calibration Status in Summer 2017 /CMS Collaboration
This note presents the status of the HCAL calibration in Summer 2017. In particular, results on the aging of the hadron endcap (HE) detector measured using the laser calibration system and the calibration of the hadron forward (HF) detector using electrons from Z boson decays are discussed..
CMS-DP-2017-033; CERN-CMS-DP-2017-033.- Geneva : CERN, 2017 - 4 p. Fulltext: PDF;

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