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CERN Accelerating science

CMS Notes

Последние добавления:
2020-01-30
09:20
A closer collaboration between HEP Experiments and HPC centers / CMS Offline Software ; Computing
This document offers the technical view of the CMS Experiment on the requirements and desired capabilities when planning to run its data processing workflows on HPC systems. It should serve as a help for the first handshaking with HPC sites, to understand the best direction towards a more widespread utilization of such systems for HEP processing..
CMS-NOTE-2020-003; CERN-CMS-NOTE-2020-003.- Geneva : CERN, 2020 - 3 p. Fulltext: PDF;

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2020-01-30
09:20
HPC resources integration at CMS / CMS Offline Software ; Computing
This document identifies minimal set of requirements on HPC based resources in order to run CMS workflows: it is meant to sketch the strategy for an effective exploitation of such machines. It describes possible ways to use HPC machines for any type of workflows, including data reconstruction and Monte Carlo digitisation and reconstruction, besides Monte Carlo generation and simulation, which would represent little value overall if considered alone. [...]
CMS-NOTE-2020-002; CERN-CMS-NOTE-2020-002.- Geneva : CERN, 2020 - 11 p. Fulltext: PDF;

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2020-01-16
12:06
The Phase-2 Upgrade of the CMS Beam Radiation, Instrumentation, and Luminosity Detectors: Conceptual Design / The CMS Collaboration /CMS Collaboration
The CMS Beam Radiation, Instrumentation, and Luminosity (BRIL) project is responsible for a number of detector systems that measure the luminosity, beam conditions, and radiation products produced by the LHC at the CMS detector. This Conceptual Design outlines plans for the Phase-2 BRIL upgrade to ensure reliable measurements of these quantities in the HL-LHC environment. [...]
CMS-NOTE-2019-008; CERN-CMS-NOTE-2019-008.- Geneva : CERN, 2020 - 194 p. Fulltext: PDF;

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2019-11-21
10:47
Beam Test Performance of Prototype Silicon Detectors for the Outer Tracker for the Phase-2 Upgrade of CMS / Andrea, Jeremy (Strasbourg, IPHC) ; Assiouras, Panagiotis (Democritos Nucl. Res. Ctr.) ; Auzinger, Georg (CERN) ; Bhattacharya, Rajarshi (Saha Inst.) ; Canepa, Anadi (Fermilab) ; Chanon, Nicolas Pierre (Lyon, IPN) ; Cherepanov, Vladimir (Florida U.) ; Deelen, Nikkie (UC, San Diego) ; Delcourt, Martin (Louvain U.) ; Dierlamm, Alexander Hermann (KIT, Karlsruhe, EKP) et al.
A new CMS tracker detector will be installed for operation at the High Luminosity LHC\,(HL-LHC). This detector comprises modules with two closely spaced parallel sensor plates and front-end ASICs capable of transmitting tracking information to the CMS Level-1\,(L1) trigger at the 40\,MHz beam crossing rate. [...]
CMS-NOTE-2019-006; CERN-CMS-NOTE-2019-006.- Geneva : CERN, 2019 - 27 p. Fulltext: PDF;

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2019-10-23
16:32
FPGA-based tracking for the CMS Level-1 trigger using the tracklet algorithm / Bartz, Edward Hugo (Rutgers U., Piscataway) ; Gershtein, Yury (Rutgers U., Piscataway) ; Halkiadakis, Eva (Rutgers U., Piscataway) ; Kyriacou, Savvas (Johns Hopkins U.) ; Stone, Robert (Rutgers U., Piscataway) ; Boudoul, Gaelle (Lyon, IPN) ; Viret, Sebastien (Lyon, IPN) ; Bucci, Rachael Elizabeth (Notre Dame U.) ; Hildreth, Michael (Notre Dame U.) ; Lannon, Kevin Patrick (Notre Dame U.) et al.
The high instantaneous luminosities expected following the upgrade of the Large Hadron Collider (LHC) to the High Luminosity LHC (HL-LHC) pose major experimental challenges for the CMS experiment. A central component to allow efficient operation under these conditions is the reconstruction of charged particle trajectories and their inclusion in the hardware-based trigger system. [...]
CMS-NOTE-2019-005; CERN-CMS-NOTE-2019-005.- Geneva : CERN, 2019 - 32 p. Fulltext: PDF;

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2019-09-27
08:33
The DAQ and Control System for the CMS Phase-1 Pixel Detector / The Tracker Group of the CMS Collaboration /CMS Collaboration
In 2017 a new pixel detector was installed in the CMS detector. This so-called Phase-1 pixel detector features four barrel layers in the central region and three disks per end in the forward regions. [...]
CMS-NOTE-2019-004; CERN-CMS-NOTE-2019-004.- Geneva : CERN, 2019 - 58 p. Fulltext: PDF;

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2019-07-18
15:17
New radiation-tolerant thin planar and 3D columnar n$^+$ on p silicon pixel sensors / Boscardin, M ; Ceccarelli, Rudy (INFN, Florence) ; Dalla Betta, G.F ; Darbo, G ; Dinardo, Mauro (INFN, Milan Bicocca ; Milan Bicocca U.) ; Giacomini, G ; Menasce, Dario (INFN, Milan Bicocca) ; Mendicino, R ; Meschini, Marco (INFN, Florence) ; Messineo, Alberto (INFN, Pisa ; Pisa U.) et al.
The High Luminosity upgrade of the CERN Large Hadron Collider (HL-LHC) calls for new high radiation-tolerant solid-state pixel sensors, capable of surviving irradiation fluences up to a few $10^{16}\\$\,n$_{\rm eq}$/cm$^2$ at $\sim3$\,cm from the interaction point. The INFN ATLAS-CMS joint research activity, in collaboration with Fondazione Bruno Kessler, is aiming at the development of thin n$^+$ on p type pixel sensors to be operated at the HL-LHC. [...]
CMS-NOTE-2019-003; CERN-CMS-NOTE-2019-003.- Geneva : CERN, 2019 - 8 p. Fulltext: PDF;

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2019-07-09
14:12
Quality Control of Silicon Pixel Wafers for the CMS Phase-1 Pixel Upgrade / Dilsiz, Kamuran (Iowa U.) ; Durgut, Suleyman (Iowa U.) ; Yi, Kai (Iowa U.) ; Spiegel, Leonard (Fermilab)
The CMS detector at the CERN Large Hadron Collider features as its innermost component a silicon pixel detector. The original pixel detector was completely replaced during the 2016-2017 winter technical stop. [...]
CMS-NOTE-2019-002; CERN-CMS-NOTE-2019-002.- Geneva : CERN, 2019 - 12 p. Fulltext: PDF;

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2019-03-07
09:56
Physics Potential of an Experiment using LHC Neutrinos / Beni, N. (CERN ; Debrecen, Inst. Nucl. Res.) ; Brucoli, M. (CERN) ; Buontempo, S. (INFN, Naples ; Naples U.) ; Cafaro, V. (INFN, Bologna ; U. Bologna, DIFA) ; Dallavalle, G.M. (INFN, Bologna ; U. Bologna, DIFA) ; Danzeca, S. (CERN) ; De Lellis, G. (CERN ; INFN, Naples ; Naples U.) ; Di Crescenzo, A. (INFN, Naples ; Naples U.) ; Giordano, V. (INFN, Bologna ; U. Bologna, DIFA) ; Guandalini, C. (INFN, Bologna ; U. Bologna, DIFA) et al.
Production of neutrinos is abundant at LHC. Flavour composition and energy reach of the neutrino flux from proton-proton collisions depend on the pseudorapidity $\eta$. [...]
arXiv:1903.06564; CMS-NOTE-2019-001; CERN-CMS-NOTE-2019-001.- Geneva : CERN, 2019-10-11 - 19 p. - Published in : J. Phys. G 46 (2019) 115008 Fulltext: 1903.06564 - PDF; NOTE2019_001 - PDF;

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2018-12-12
09:56
Expected performance of the physics objects with the upgraded CMS detector at the HL-LHC / The CMS Collaboration /CMS Collaboration
In this note, the performance of the physics objects (electrons, photons, taus, jets, and missing energy), as expected after the CMS Phase-2 detector upgrade, is presented. The performance studies use the full simulation of the CMS Phase-2 detector with a mean number of proton-proton interactions per bunch crossing of 200. [...]
CMS-NOTE-2018-006; CERN-CMS-NOTE-2018-006.- Geneva : CERN, 2018 - 33 p. Fulltext: PDF;

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