2018-11-26
11:16 |
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2018-11-13
10:52 |
Patatrack Heterogeneous Computing 2018 Demonstrator: Pixel Tracks
/CMS Collaboration
The Patatrack Team, during 2018, explored heterogeneous solutions within CMS using GPUs and CMSSW. In this Note we report on the progress made on porting the full workflow of Pixel Track reconstruction at HLT on GPUs. [...]
CMS-DP-2018-059; CERN-CMS-DP-2018-059.-
Geneva : CERN, 2018 - 14 p.
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2018-11-13
10:52 |
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2018-10-22
11:12 |
Early 2018 High-Level Trigger rates
/CMS Collaboration
This note presents early 2018 CMS High-Level Trigger (HLT) rate results. The rates consumed by each CMS physics group are reported..
CMS-DP-2018-057; CERN-CMS-DP-2018-057.-
Geneva : CERN, 2018 - 7 p.
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2018-10-22
11:12 |
Efficiency of Si-strips sensors used in Precision Proton Spectrometer
/CMS and TOTEM Collaborations
The Precision Proton Spectrometer (PPS) is a forward-proton
spectrometer using near-beam detectors (Roman Pots, RPs) located
symmetrically on both sides of IP5 at a distance of about 220 m. At
The early stage of the project, the tracking RPs were equipped with
Si-strip sensors used in the TOTEM experiment. [...]
CMS-DP-2018-056; CERN-CMS-DP-2018-056.-
Geneva : CERN, 2018 - 12 p.
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2018-10-22
11:12 |
HLT Dimuon Invariant Mass Distributions In 2017 and 2018
/CMS Collaboration
Dimuon invariant mass distributions for events recorded in 2017 and 2018 and reconstructed in the CMS High Level Trigger system are shown in this note. Events are recorded largely unconstrained by requirements on muon kinematics otherwise imposed by CMS data acquisition and event reconstruction workflows. [...]
CMS-DP-2018-055; CERN-CMS-DP-2018-055.-
Geneva : CERN, 2018 - 8 p.
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2018-09-24
09:39 |
Tau reconstruction with calorimeter jets at $ \sqrt{s} = 13 $ TeV
/CMS Collaboration
We present the calo-tau algorithm, which is a dedicated high $ p_{T} $ (transverse momentum) tau reconstruction algorithm that primarily uses calorimeter hits instead of tracks. The performance of this algorithm is presented, along with a comparison with the standard HPS (Hadron Plus Strip) reconstruction algorithm.
This study is work in progress, and is an attempt to tune the reconstruction for high $ p_{T} $ taus. [...]
CMS-DP-2018-054; CERN-CMS-DP-2018-054.-
Geneva : CERN, 2018 - 9 p.
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2018-09-18
10:42 |
Boosted Gluon Fusion Higgs to bb Trigger Efficiency in 2018 Data
/CMS Collaboration
This note presents the performance of a single jet high level trigger in proton-proton collisions recorded during early 2018. The trigger has been developed for the search of gluon fusion produced Higgs decaying to a pair of b quarks and utilizes a multivariate discriminant that determines the likelihood a jet contains two b quarks..
CMS-DP-2018-053; CERN-CMS-DP-2018-053.-
Geneva : CERN, 2018 - 7 p.
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2018-09-12
10:40 |
Silicon Strip Tracker Performance results 2018
/CMS Collaboration
A campaign of measurements has been performed in 2018 to evaluate the performances of the CMS Silicon Strip Tracker.
The hit efficiency and resolution measurements show a stability of the performances with results compatible with the one obtained in 2017.
The hit inefficiency is predominantly due to highly ionizing particles occurring within the sensitive volume and inducing dead time in the detector. The probabilities of such rare events have been measured per p-p interaction during dedicated runs. [...]
CMS-DP-2018-052; CERN-CMS-DP-2018-052.-
Geneva : CERN, 2018 - 21 p.
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2018-08-20
13:41 |
Tracking POG results for pion efficiency with the D* meson using data from 2016 and 2017
/CMS Collaboration
In this note the tracking efficiency measurement results are shown for data collected in 2016 and 2017.
The charged pion relative efficiency is measured with an indirect method from the reconstruction of two decay chains $D^* \rightarrow D^0\pi \rightarrow k\pi\pi_{slow}$ and $D^* \rightarrow D^0\pi \rightarrow k3\pi\pi_{slow}$ in data and MonteCarlo.
The uncertainty of this measurement will be systematic uncertainty associated to the charged hadron reconstruction in CMS..
CMS-DP-2018-050; CERN-CMS-DP-2018-050.-
Geneva : CERN, 2018 - 10 p.
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