CERN Accelerating science

CMS Conference Reports

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2019-07-18
14:55
The Upgrade of the CMS Inner Tracker for HL-LHC / Backhaus, Malte (Zurich, ETH) /CMS Collaboration
During the Long Shutdown (LS) from 2024 to 2026 the Large Hadron Collider (LHC) will be upgraded in order to provide a ten-fold increase of the data rate to the experiments. This will enhance the sensitivity of the experiments to possible unexplored rare processes and to allow for precision measurements of known processes, in particular of the properties of the Higgs Boson which was discovered in 2012. [...]
CMS-CR-2019-011.- Geneva : CERN, 2019 - 14 p. Fulltext: PDF;
In : International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (PIXEL2018), Taipei, Taiwan, 10 - 14 Dec 2018

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2019-07-09
14:19
Serial powering and high hit rate efficiency measurement for the Phase 2 Upgrade of the CMS Pixel Detector. / Ruini, Daniele (Zurich, ETH)
A serially powered pixel detector is the baseline choice for the High Luminosity upgrade of the inner tracker of the CMS experiment. A serial power distribution scheme, compared to parallel powering, requires less cable mass, offers higher power efficiency and is less susceptible to voltage transients. [...]
CMS-CR-2019-009.- Geneva : CERN, 2019 - 10 p. Fulltext: PDF;
In : International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (PIXEL2018), Taipei, Taiwan, 10 - 14 Dec 2018

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2019-07-09
14:19
First Results on 3D Pixel Sensors Interconnected to the RD53A Readout Chip after Irradiation to $1\times$$10^{16}$\,neq cm$^{-2}$ / Meschini, Marco (INFN, Florence) ; Ceccarelli, Rudy (INFN, Florence) ; Dinardo, Mauro (INFN, Milan Bicocca ; Milan Bicocca U.) ; Gennai, Simone (INFN, Milan Bicocca) ; Moroni, Luigi (INFN, Milan Bicocca) ; Zuolo, Davide (INFN, Milan Bicocca ; Milan Bicocca U.) ; Demaria, L ; Monteil, Ennio (INFN, Turin ; Turin U.) ; Gaioni, Luigi (INFN, Pavia) ; Messineo, Alberto (INFN, Pisa ; Pisa U.) et al.
Results obtained with 3D columnar pixel sensors bump-bonded to the RD53A prototype readout chip are reported. The interconnected modules have been tested in a hadron beam before and after irradiation to a fluence of about $1\times$$10^{16}$\,neq cm$^{-2}$ (1\,MeV equivalent neutrons). All presented results are part of the CMS R\&D; activities in view of the pixel detector upgrade for the High Luminosity phase of the LHC at CERN (HL-LHC). [...]
CMS-CR-2019-010.- Geneva : CERN, 2019 - 8 p. Fulltext: PDF;
In : International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (PIXEL2018), Taipei, Taiwan, 10 - 14 Dec 2018

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2019-07-09
14:15
QCD Monte Carlo model tuning studies with CMS data at 13 TeV / Yazgan, Efe (Beijing, Inst. High Energy Phys.) /CMS Collaboration
Recent QCD Monte Carlo tuning studies done in the CMS Collaboration are presented. Jet kinematics, jet substructure, and underlying event measurements in top quark pair events are discussed. [...]
CMS-CR-2019-076.- Geneva : CERN, 2019 - 7 p. Fulltext: PDF;
In : The XXVII International Workshop on Deep Inelastic Scattering and Related Subjects, Turin, Italy, 8 - 12 Apr 2019

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2019-07-09
14:14
Recent CMS results on the Soft QCD and Forward Physics / Mehta, Ankita (Eotvos U.) /CMS Collaboration
This presentation covers the recent measurements on Soft QCD and Forward Physics by CMS experiment..
CMS-CR-2019-088.- Geneva : CERN, 2019 - 7 p. Fulltext: PDF;
In : The XXVII International Workshop on Deep Inelastic Scattering and Related Subjects, Turin, Italy, 8 - 12 Apr 2019

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2019-06-21
08:40
Development of the CMS Phase-1 Pixel Online Monitoring System and the Evolution of Pixel Leakage Current / Zhang, Fengwangdong (UC, Davis) /CMS Collaboration
A new pixel online monitoring system has been developed to give a fast and intuitive view of the detector performance both offline and online. The source script was written modularly in Python programming language in association with the SQLite and Java languages. [...]
CMS-CR-2019-017.- Geneva : CERN, 2019 - 11 p. Fulltext: PDF;
In : International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (PIXEL2018), Taipei, Taiwan, 10 - 14 Dec 2018

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2019-05-31
15:13
Using DODAS as deployment manager for smart caching of CMS data management system / Tracolli, Mirco (INFN, Perugia) /CMS Collaboration
DODAS stands for Dynamic On Demand Analysis Service and is a Platform as a Service toolkit built around several EOSC-hub services designed to instantiate and configure on-demand container-based clusters over public or private Cloud resources. It automates the whole workflow from service provisioning to the configuration and setup of software applications. [...]
CMS-CR-2019-066.- Geneva : CERN, 2019 - 7 p. Fulltext: PDF;
In : 19th International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Saas Fee, Switzerland, 11 - 15 Mar 2019

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2019-05-28
10:57
[YSF] Constraining the top quark Yukawa coupling from $\ensuremath{\mathrm{t}\bar{\mathrm{t}}}$ differential cross sections in the lepton+jets final state in proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$ / Duh, Yi-ting (Brown U.) /CMS Collaboration
A measurement of the top quark Yukawa coupling from the top quark-antiquark ($\ensuremath{\mathrm{t}\bar{\mathrm{t}}}$) differential production cross sections in proton-proton collisions in the lepton+jets channel is presented. Corrections due to weak boson exchange, including the Higgs boson, between the top quarks can produce large distortions of differential distributions near the energy threshold of top quark pair production. [...]
CMS-CR-2019-065.- Geneva : CERN, 2019 - 5 p. Fulltext: PDF;
In : 54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 16 - 23 Mar 2019

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2019-05-24
15:59
The CMS Pixel Detector\\ for the High Luminosity LHC / Sguazzoni, Giacomo (INFN, Florence) /CMS Collaboration
The High Luminosity Large Hadron Collider (HL-LHC) at CERN is expected to collide protons at a centre-of-mass energy of 14 TeV and to reach the unprecedented peak instantaneous luminosity of $5-7.5\times10^{34} \,\mathrm{cm}^{-2}\mathrm{s}^{-1}$ with an average number of pile-up events of 140-200. This will allow the ATLAS and CMS experiments to each collect integrated luminosities up to $3000-4500\,\mathrm{fb}^{-1}$ during the project lifetime. [...]
CMS-CR-2019-021.- Geneva : CERN, 2019 - 5 p. Fulltext: PDF;
In : 15th Vienna Conference on Instrumentation, Vienna, Austria, 18 - 22 Feb 2019

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2019-05-24
14:07
Higgs Couplings in CMS in Run2 / Cooperstein, Stephane B (Princeton U.) /CMS Collaboration
The latest results on Higgs boson couplings using Run-2 data collected by the CMS experiment are presented. These recent developments include the confirmation of what had been the two remaining third generation Yukawa couplings yet to be observed, the top quark and bottom quark couplings. [...]
CMS-CR-2019-037.- Geneva : CERN, 2019 - 7 p. Fulltext: PDF;
In : 54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 16 - 23 Mar 2019

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