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CMS Detector Performance Summaries

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2014-03-31
09:45
Level-1 Muon Trigger and RPC PAC Trigger performance plots /CMS Collaboration
The performance results of the Level-1 Muon Trigger for the year 2012 are presented in the first part of the document. These results include: the analysis of the timing of the L1 Muon Trigger (i.e. [...]
CMS-DP-2014-006; CERN-CMS-DP-2014-006.- Geneva : CERN, 2014 - 22 p. Fulltext: PDF;

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2014-03-21
12:01
Measurement of currents drawn by DT chambers as a function of LHC instantaneous luminosity. /CMS Collaboration
The currents drawn by the DT chambers were read from the DT High Voltage modules. The present measurement was performed during LHC operation, fills 2683 to 2728..
CMS-DP-2014-005; CERN-CMS-DP-2014-005.- Geneva : CERN, 2014 - 4 p. Fulltext: PDF;

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2014-03-21
12:01
Measurement of hit position resolution in the DT chambers using 2012 data. /CMS Collaboration
The hit resolution is computed from the width of the distribution of the observed distance between any reconstructed hit and the fitted segment it belongs to. The present measurement is based on collision data collected in 2012..
CMS-DP-2014-004; CERN-CMS-DP-2014-004.- Geneva : CERN, 2014 - 7 p. Fulltext: PDF;

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2014-03-11
15:38
Resistive Plate Chambers commissioning and performance results for 2011-2013.
Resistive Plate Chambers (RPC) performance results for the period between 2011-2013 are presented. These results include history plots for the RPC relevant variables such as: Cluster Size, Efficiency, percentage of inactive detector during operation, Rates, and Currents. [...]
CMS-DP-2014-003; CERN-CMS-DP-2014-003.- Geneva : CERN, 2014 - 49 p. Fulltext: PDF;

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2014-01-10
09:21
Quality Certification 4 (QC4) for RE4 Performance Plots /CMS Collaboration
The installation of two new wheels in the end-caps of the RPC system (RE4) is expected during LHC Long Shutdown (LS1). The RE4 upgrade project consists of 72 Super Modules (SM), each one made with 2 RPC chambers, for a total of 144 double-gap RPC chambers. [...]
CMS-DP-2014-001; CERN-CMS-DP-2014-001.- Geneva : CERN, 2013 - 6 p. Fulltext: PDF;

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2013-12-02
10:13
CASTOR very forward calorimeter performance in 2013 data in pPb and pp collisions /CMS Collaboration
CASTOR has taken data since the beginning of LHC operation in 2009. In 2012 the calorimeter has been upgraded with radiation hard PMTs. [...]
CMS-DP-2013-035; CERN-CMS-DP-2013-035.- Geneva : CERN, 2013 - 23 p. Fulltext: PDF;

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2013-11-12
10:51
Centrality determination for pPb data 2013 /CMS Collaboration
Centrality is very important for defining the collision system size in heavy ion collisions. It provides a tool for selecting events in a similar way in different experiments and facilitates the comparison of experimental results and theoretical calculations [...]
CMS-DP-2013-034; CERN-CMS-DP-2013-034.- Geneva : CERN, 2013 - 17 p. Fulltext: PDF;

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2013-11-12
10:51
8 TeV Jet Energy Corrections and Uncertainties based on 19.8 fb$^{-1}$ of data in CMS /CMS Collaboration
This note summarizes the current state of the Jet Energy Corrections and Uncertainties based on 19.8 fb$^{-1}$ of 8 TeV data..
CMS-DP-2013-033; CERN-CMS-DP-2013-033.- Geneva : CERN, 2013 - 9 p. Fulltext: PDF;

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2013-10-30
15:59
BCM1F Performance in 2012 /CMS Collaboration
The Fast Beam Condition Monitor BCM1F consists of 8 single-crystal CVD 5 mm x 5 mm diamonds positioned 1.8 m on either side of the interaction point at a radius of 4.5 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-2013-032; CERN-CMS-DP-2013-032.- Geneva : CERN, 2013 - 7 p. Fulltext: PDF;

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2013-10-30
15:59
Collision induced background in the DT chambers /CMS Collaboration
The spatial distribution of background produced by colliding beams in the DT chambers was determined using 2012 data and found to be compatible with expectations. Within the available range, the rates increase linearly with increasing instantaneous beam luminosity..
CMS-DP-2013-031; CERN-CMS-DP-2013-031.- Geneva : CERN, 2013 - 7 p. Fulltext: PDF;

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