CERN Accelerating science

CMS Notes

Darreres entrades:
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 - 20 p. 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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2018-12-07
16:07
HCAL automated software building and deployment with GitLab / Southwick, David Charles (Iowa U.)
This report details the creation and implementation of continuous integration practices within the Hadronic Calorimeter (HCAL) subdetector of the Compact Muon Solenoid (CMS) at the European Organization for Nuclear Research (CERN). Steps detail migration of detector operations code base from SVN to GIT, followed by creation and development of a new Continuous Integration (CI) workflow for developers..
CMS-NOTE-2018-005; CERN-CMS-NOTE-2018-005.- Geneva : CERN, 2018 - 8 p. Fulltext: PDF;

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2018-11-30
09:57
CMS Endcap Calorimeter for HL-LHC design. Trays Skirt for Backing HE Endcap Calorimeter accessibility. Technical proposal. / Ershov, Yuri (Dubna, JINR) ; Golutvin, Igor (Dubna, JINR) ; Kashpydai, Omak (NIKIET, Moscow) ; Kulikova, Tatiana (NIKIET, Moscow) ; Lavrenov, Pavel (NIKIET, Moscow) ; Orlov, A.N ; Postnov, Artem (NIKIET, Moscow)
The existing Compact Muon Solenoid (CMS) Endcap Hadron Calorimeters (HE) have been in operation for several years and contributed substantially to the success of the CMS Physics Program. The High Luminosity Large Hadron Collider (HL-LHC) performance criteria, however, require a re-examination of the ability of the detector active material and electronics to meet the requirements of 3000 fb$^{-1}$ [1, 2]. [...]
CMS-NOTE-2018-004; CERN-CMS-NOTE-2018-004.- Geneva : CERN, 2016 - 6 p. Fulltext: PDF;

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2018-08-03
15:07
A High-performance Track Fitter for Use in Ultra-fast Electronics / Clement, Emyr John (Bristol U.) ; De Mattia, Marco (Texas A-M) ; Dutta, Suchandra (Saha Inst.) ; Eusebi, Ricardo (Texas A-M) ; Fu, Yu (Florida U.) ; Hahn, Kristan Allan (Northwestern U.) ; Hu, Zhen (Fermilab) ; Jindariani, Sergo (Fermilab) ; Konigsberg, Jacobo (Florida U.) ; Liu, Tiehui Ted (Fermilab) et al.
This article describes a new charged-particle track fitting algorithm designed for use in high-speed electronics applications such as hardware-based triggers in high-energy physics experiments. Following a novel technique designed for fast electronics, the positions of the hits on the detector are transformed before being passed to a linearized track parameter fit. [...]
CMS-NOTE-2018-003; CERN-CMS-NOTE-2018-003.- Geneva : CERN, 2018 - 15 p. Fulltext: PDF;

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2018-05-07
10:49
Front-side biasing of n-in-p silicon strip detectors / Baselga Bacardit, Marta (KIT, Karlsruhe, EKP) ; Bergauer, Thomas (Vienna, OAW) ; Dierlamm, Alexander Hermann (KIT, Karlsruhe, EKP) ; Dragicevic, Marko Gerhart (Vienna, OAW) ; Konig, Axel (Vienna, OAW) ; Pree, Elias (Vienna, OAW) ; Metzler, Marius (KIT, Karlsruhe, EKP)
Front-side biasing is an alternative method to bias a silicon sensor. Instead of directly applying high voltage to the back-side, one can exploit the conductive properties of the edge region to bias a detector exclusively via top-side connections. [...]
CMS-NOTE-2018-002; CERN-CMS-NOTE-2018-002.- Geneva : CERN, 2018 - 23 p. Fulltext: PDF;

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2018-03-20
10:05
CMS-XSEN: LHC Neutrinos at CMS. Experiment Feasibility Study / Buontempo, S. (INFN, Naples) ; Dallavalle, G.M. (INFN, Bologna) ; De Lellis, G. (Naples U. ; INFN, Naples) ; Lazic, D. (Boston U.) ; Navarria, F.L. (Bologna U. ; INFN, Bologna)
We discuss a CMS eXtension for Studying Energetic Neutrinos (CMS-XSEN) [...]
CMS NOTE-2018/001 ; CMS-NOTE-2018-001 ; arXiv:1804.04413 ; CERN-CMS-NOTE-2018-001.
- 2018. - 9 p.
Full text - Fulltext

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2017-10-20
16:53
Test beam demonstration of silicon microstrip modules with transverse momentum discrimination for the future CMS tracking detector / The CMS Tracker collaboration
A new CMS Tracker is under development for operation at the High Luminosity LHC from 2026 onwards. It includes an outer tracker based on dedicated modules that will reconstruct short track segments, called stubs, using spatially coincident clusters in two closely spaced silicon sensor layers. [...]
CMS-NOTE-2017-010; CERN-CMS-NOTE-2017-010.- Geneva : CERN, 2018 - 34 p. - Published in : JINST 13 (2018) P03003 Fulltext: NOTE2017_010 - PDF; 10.1088_1748-0221_13_03_P03003 - PDF;

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2017-10-09
10:39
An FPGA based track finder for the L1 trigger of the CMS experiment at the High Luminosity LHC / Tomalin, Ian (Rutherford) ; Ardila Perez, Luis Eduardo (KIT, Karlsruhe, IPE) ; Ball, Fionn Amhairghen (Bristol U.) ; Balzer, Matthias Norbert (KIT, Karlsruhe, IPE) ; Boudoul, Gaelle (Lyon, IPN) ; Brooke, James John (Bristol U.) ; Caselle, Michele (KIT, Karlsruhe, IPE) ; Calligaris, Luigi (Rutherford) ; Cieri, Davide (Rutherford) ; Clement, Emyr John (Bristol U.) et al.
A new tracking detector is under development for use by the CMS experiment at the High-Luminosity LHC (HL-LHC). A crucial requirement of this upgrade is to provide the ability to reconstruct all charged particle tracks with transverse momentum above 2-3 GeV within 4$\mu$s so they can be used in the Level-1 trigger decision. [...]
CMS-NOTE-2017-009; CERN-CMS-NOTE-2017-009.- Geneva : CERN, 2017-12-14 - 43 p. - Published in : JINST 12 (2017) P12019 Fulltext: PDF; External link: IOP Open Access article

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