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CMS Detector Performance Summaries

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2022-01-27
14:37
New opportunities of heavy ion physics with CMS-MTD at the HL-LHC
The document presents full simulation results on new opportunities of heavy ion physics with CMS-MTD at the HL-LHC, with a broad range of observables..
CMS-DP-2021-037; CERN-CMS-DP-2021-037.- Geneva : CERN, 2021 - 29 p. Fulltext: PDF;

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2022-01-13
13:27
Performance of the DT Phase-2 readout and local reconstruction with cosmic ray data from the DT slice-test /CMS Collaboration
The Phase 2 upgrade of the CMS Drift Tubes electronics targets the detector operation at HL-LHC and will be carried out during LHC Long Shutdown 3: its goal is to make the DT local trigger able to sustain the rates expected at HL-LHC, while improving at the same time its time resolution. In Long Shutdown 2 a Slice Test was setup by equipping four DT chambers, in the same sector, with Phase 2 prototype on-board electronics, streaming data to the readout in parallel with the legacy system. [...]
CMS-DP-2021-036; CERN-CMS-DP-2021-036.- Geneva : CERN, 2021 - 8 p. Fulltext: PDF;

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2022-01-13
13:27
Tracker DQM Machine Learning studies for data certification /CMS Collaboration
At CMS, the procedure of data certification ensures the good functioning of the detector and hence the validity of the data for physics analysis. Currently, the certification is performed by checking manually a large amount of distributions. [...]
CMS-DP-2021-034; CERN-CMS-DP-2021-034.- Geneva : CERN, 2021 - 15 p. Fulltext: PDF;

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2021-12-10
14:21
Performance of the End-to-End Neural Network Approach to Phase-2 Level-1 Trigger Primary Vertex Reconstruction and Track to Vertex Association /CMS Collaboration
The Phase-2 upgrade of the Level-1 (L1) Trigger will see tracker tracks reconstructed and passed down to global triggering algorithms such as primary vertex (PV) finding. This will be used to associate tracks and other trigger objects to the PV in an event, reducing the impact of pile-up (PU) and increasing trigger performance in certain scenarios. [...]
CMS-DP-2021-035; CERN-CMS-DP-2021-035.- Geneva : CERN, 2021 - 12 p. Fulltext: PDF;

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2021-12-06
22:36
Jet energy scale and resolution measurement with Run~2 Legacy Data Collected by CMS at 13~TeV /CMS Collaboration
We present jet energy scale and resolution measurement with 13 TeV legacy data collected by CMS from 2016-2018..
CMS-DP-2021-033; CERN-CMS-DP-2021-033.- Geneva : CERN, 2021 - 17 p. Fulltext: PDF;

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2021-12-06
22:36
ECAL SuperClustering with Machine Learning /CMS Collaboration
In this note, we present a novel electron/photon super-clustering algorithm based on Graph Neural Networks (GNN). This new approach has much better resolution and better energy purity even at high pile-up compared to the algorithm used during Run 2..
CMS-DP-2021-032; CERN-CMS-DP-2021-032.- Geneva : CERN, 2021 - 11 p. Fulltext: PDF;

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2021-12-06
22:36
Machine Learning for Particle Flow Reconstruction at CMS /CMS Collaboration
We provide details on the implementation of a machine-learning based particle flow algorithm for CMS. The standard particle flow algorithm reconstructs stable particles based on calorimeter clusters and tracks and is essential for physics analyses involving jets and missing transverse energy. [...]
CMS-DP-2021-030; CERN-CMS-DP-2021-030.- Geneva : CERN, 2021 - 36 p. Fulltext: PDF;

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2021-12-06
22:36
Analytical Method (AM) for DT Trigger Primitive Generation in Phase 2. Performance results on simulation /CMS Collaboration
A full replacement of the muon trigger system in the CMS (Compact Muon Solenoid) detector is envisaged for operating at the maximum instantaneous luminosities expected in HL-LHC (High Luminosity Large Hadron Collider) of about 5-7.5x10$^{34}$cm$^{-2}$s$^{-1}$. Under this scenario, the new on detector electronics that is being designed for the DT (Drift Tubes) detector will forward all the chamber information at its maximum time resolution. [...]
CMS-DP-2021-028; CERN-CMS-DP-2021-028.- Geneva : CERN, 2021 - 10 p. Fulltext: PDF;

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2021-12-06
22:36
Analytical Method (AM) for DT Trigger Primitive Generation in Phase 2. Slice Test Results with 2021 cosmics data /CMS Collaboration
A full replacement of the muon trigger system in the CMS (Compact Muon Solenoid) detector is envisaged for operating at the maximum instantaneous luminosities expected in HL-LHC (High Luminosity Large Hadron Collider) of about 5-7.5x10$^{34}$cm$^{-2}$s$^{-1}$. Under this scenario, the new on detector electronics that is being designed for the DT (Drift Tubes) detector will forward all the chamber information at its maximum time resolution. [...]
CMS-DP-2021-027; CERN-CMS-DP-2021-027.- Geneva : CERN, 2021 - 12 p. Fulltext: PDF;

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2021-12-06
22:36
Experiments Data Quality (CMS)
Study of expected objects and physics performance with Phase-2 CMS detector at the HL-LHC for different PU density is presented
CMS-DP-2021-026; CERN-CMS-DP-2021-026.- Geneva : CERN, 2021 - 13 p. Fulltext: PDF;

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