# CMS Detector Performance Summaries

Senast inlagda poster:
2015-11-03
17:22
 CSC local efficiency measurements from run II data /CMS Collaboration The endcap muon detector of CMS is composed primarily of Cathode Strip Chambers (CSCs). In run II of LHC, the CMS experiment has collected data from pp collisions at 13 TeV centre-of-mass energy. [...] CMS-DP-2015-052; CERN-CMS-DP-2015-052.- Geneva : CERN, 2015 - 7 p. Fulltext: PDF;

2015-10-29
15:40
 L1 calorimeter trigger upgrade: jet and energy sum performance and commissioning status /CMS Collaboration The performance and commissioning status of the Level-1 calorimeter trigger upgrade going online in 2016 is presented. Particular emphasis is placed on the performance of jet and energy sum algorithms.. CMS-DP-2015-051; CERN-CMS-DP-2015-051.- Geneva : CERN, 2015 - 15 p. Fulltext: PDF;

2015-10-29
15:40
 Performance of the Stage 1 Calorimeter Trigger Upgrade /CMS Collaboration The CMS Level-1 calorimeter trigger has undergone the first of two stages of upgrades to maintain performance as the LHC exceeds pileup and instantaneous luminosity specifications. Energy sums and jet, tau, and electron/photon candidates are now computed after event-by-event pileup subtraction. [...] CMS-DP-2015-050; CERN-CMS-DP-2015-050.- Geneva : CERN, 2015 - 10 p. Fulltext: PDF;

2015-10-06
14:09
 Mechanical stability of the CMS Tracker /CMS Collaboration The CMS Tracker consists of about 210 m$^2$ of silicon strip sensors assembled on various carbon fiber composite structures. The engineering design of the Tracker provides the mounting accuracy of tracker components of about 50$\mu$m but allows some constrained movements. The mechanical stability of Tracker components during Tracker operation is monitored with a dedicated Laser Alignment System and using particle tracks from cosmics and collisions. The laser system monitors a relative movement of large substructures with an accuracy of a few microns in a few minutes interval while the alignment with tracks reconstructs the absolute position of individual detector modules with a similar accuracy but after days of data taking. [...] CMS-DP-2015-048; CERN-CMS-DP-2015-048.- Geneva : CERN, 2015 - 20 p. Fulltext: PDF;

2015-09-21
15:35
 First Muon Identification Efficiencies with 13 TeV, 50 ns Data /CMS Collaboration First measurement of muon identification efficiency using Tag-And-Probe method. Run-2 results for 13 TeV, 50 ns data are compared with the ones from DY MC.. CMS-DP-2015-047; CERN-CMS-DP-2015-047.- Geneva : CERN, 2015 - 5 p. Fulltext: PDF;

2015-09-18
09:17
 BCM1F Performance Plots for EPS 2015 /CMS Collaboration The Fast Beam Condition Monitor BCM1F consists of 24 single-crystal CVD 5 mm x 5 mm diamonds positioned 1.8 m on either side of the interaction point at a radius of 6.5 cm from the beam pipe. The signal is read out, shaped by a frontend ASIC, and converted to an optical signal which is then transmitted to the backend electronics in USC55. [...] CMS-DP-2015-046; CERN-CMS-DP-2015-046.- Geneva : CERN, 2015 - 11 p. Fulltext: PDF;

2015-09-14
10:52
 CMS JEC Run I legacy performance plots We present the Run I legacy performance plots for Jet Energy Corrections at 8 TeV with 20/fb.. CMS-DP-2015-044; CERN-CMS-DP-2015-044.- Geneva : CERN, 2015 - 10 p. Fulltext: PDF;

2015-09-14
10:52
 Performance of b-Tagging Algorithms in 50ns Data at 13 TeV /CMS Collaboration At the Large Hadron Collider, the identification of jets originating from b quarks is important for searches for new physics and for measurements of standard model processes. A variety of algorithms has been developed by CMS to select b-quark jets based on variables such as the impact parameters of the charged-particle tracks, the properties of reconstructed decay vertices, and the presence or absence of a lepton, or combinations thereof. [...] CMS-DP-2015-045; CERN-CMS-DP-2015-045.- Geneva : CERN, 2015 - 32 p. Fulltext: PDF;

2015-09-11
15:35
 Pileup per particle identification: preparation for Run 2 /CMS Collaboration This DPS illustrates first performance of pileup per particle identification (PUPPI) in preparation for Run 2 including first 50 ns commissioning data for jets, muon isolation and missing transverse energy.. CMS-DP-2015-034; CERN-CMS-DP-2015-034.- Geneva : CERN, 2015 - 15 p. Fulltext: PDF;

2015-09-11
09:27
 W/Z/Top tagging for Run 2 in CMS /CMS Collaboration The W/Z/top tagging algorithms developed at CMS are presented. This talk will focus on the most recent algorithms used in LHC Run I analyses as well as developments in more advanced techniques for LHC Run II.. CMS-DP-2015-043; CERN-CMS-DP-2015-043.- Geneva : CERN, 2015 - 23 p. Fulltext: PDF;