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1.
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Design and development of the DAQ and Timing Hub for CMS Phase-2
/ Andre, Jean-marc Olivier (Fermilab) ; Behrens, Ulf (DESY) ; Bocci, Andrea (CERN) ; Branson, James (UC, San Diego) ; Cittolin, Sergio (UC, San Diego) ; Da Silva Gomes, Diego (CERN) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) ; Demiragli, Zeynep (Boston U.) ; Dobson, Marc (CERN) et al.
The CMS detector will undergo a major upgrade for Phase-2 of the LHC program, starting around 2026. The upgraded Level-1 hardware trigger will select events at a rate of 750 kHz. [...]
CMS-CR-2018-307; FERMILAB-CONF-18-656-E.-
Geneva : CERN, 2019 - 7 p.
- Published in : PoS TWEPP2018 (2019) 129
Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics, Antwerp, Belgique, 17 - 21 Sep 2018, pp.129
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2.
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DAQExpert - An expert system to increase CMS data-taking efficiency
/ Andre, Jean-marc Olivier (Fermilab) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Contescu, Cristian (Fermilab) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) ; Demiragli, Zeynep (MIT) ; Dobson, Marc (CERN) et al.
The efficiency of the Data Acquisition (DAQ) of the Compact Muon Solenoid (CMS) experiment for LHC Run 2 is constantly being improved. A~significant factor affecting the data taking efficiency is the experience of the DAQ operator. [...]
CMS-CR-2017-381; FERMILAB-CONF-18-597-CMS.-
Geneva : CERN, 2018-10-18 - 6 p.
- Published in : J. Phys.: Conf. Ser. 1085 (2018) 032021
Fulltext: CR2017_381 - PDF; fermilab-conf-18-597-cms - PDF;
In : 18th International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Seattle, WA, USA, 21 - 25 Aug 2017, pp.032021
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3.
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Opportunistic usage of the CMS online cluster using a cloud overlay
/ Chaze, Olivier (CERN) ; Jean-Marc, Andre (Illinois U., Chicago) ; Andronidis, Anastasios (CERN) ; Behrens, Ulf (CERN) ; Branson, James (San Diego, CASS) ; Brummer, Philipp (CERN) ; Contescu, Alexandru-Cristian (UCT-CERN Res. Ctr.) ; Cittolin, Sergio (San Diego, CASS) ; Craigs, Benjamin (CERN) ; Darlea, Georgiana-Lavinia (Bucharest, Polytechnic Inst.) et al.
After two years of maintenance and upgrade, the Large Hadron Collider (LHC), the largest and most powerful particle accelerator in the world, has started its second three year run. Around 1500 computers make up the CMS (Compact Muon Solenoid) Online cluster. [...]
SISSA, 2016 - 16 p.
- Published in : PoS ISGC2016 (2016) 022
Fulltext: PDF; External link: PoS server
In : Proceedings, International Symposium on Grids and Clouds 2016: Ubiquitous e-infrastructures and Applications, Taipei, Taiwan, 13 - 18 Mar 2016, pp.22
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4.
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The CMS Data Acquisition - Architectures for the Phase-2 Upgrade
/ Andre, Jean-Marc Olivier (Fermilab) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Brummer, Philipp Maximilian (CERN) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Contescu, Cristian (Fermilab) ; Craigs, Benjamin Gordon (CERN) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) et al.
The upgraded High Luminosity LHC, after the third Long Shutdown (LS3), will provide an instantaneous luminosity of $7.5\times10^{34}$ cm$^{-2} s^{-1}$ (levelled), at the price of extreme pileup of up to 200 interactions per crossing. In LS3, the CMS Detector will also undergo a major upgrade to prepare for the phase-2 of the LHC physics program, starting around 2025. [...]
CMS-CR-2017-030.-
Geneva : CERN, 2017 - 8 p.
- Published in : J. Phys.: Conf. Ser. 898 (2017) 032019
Fulltext: PDF; External link: IOP Open Access Article
In : 22nd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2016, San Francisco, Usa, 10 - 14 Oct 2016, pp.032019
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5.
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New operator assistance features in the CMS Run Control System
/ Andre, Jean-Marc Olivier (Fermilab) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Brummer, Philipp Maximilian (CERN) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Contescu, Cristian (Fermilab) ; Craigs, Benjamin Gordon (CERN) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) et al.
During Run-1 of the LHC, many operational procedures have been automated in the run control system of the Compact Muon Solenoid (CMS) experiment. When detector high voltages are ramped up or down or upon certain beam mode changes of the LHC, the DAQ system is automatically partially reconfigured with new parameters. [...]
CMS-CR-2017-039.-
Geneva : CERN, 2017 - 8 p.
- Published in : J. Phys.: Conf. Ser. 898 (2017) 032028
Fulltext: PDF; External link: IOP Open Access Article
In : 22nd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2016, San Francisco, Usa, 10 - 14 Oct 2016, pp.032028
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6.
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Performance of the CMS Event Builder
/ Andre, Jean-Marc Olivier (Fermilab) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Brummer, Philipp Maximilian (CERN) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Contescu, Cristian (Fermilab) ; Craigs, Benjamin Gordon (CERN) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) et al.
The data acquisition system (DAQ) of the CMS experiment at the CERN Large Hadron Collider assembles events at a rate of 100 kHz, transporting event data at an aggregate throughput of to the high-level trigger farm. The DAQ architecture is based on state-of-the-art network technologies for the event building. [...]
CMS-CR-2017-034.-
Geneva : CERN, 2017 - 8 p.
- Published in : J. Phys.: Conf. Ser. 898 (2017) 032020
Fulltext: PDF; External link: IOP Open Access Article
In : 22nd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2016, San Francisco, Usa, 10 - 14 Oct 2016, pp.032020
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7.
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Higgs physics at CMS
/ Holzner, Andre Georg (UC, San Diego)
/CMS Collaboration
This article reviews recent measurements of the properties of the standard model Higgs boson using data recorded with the CMS detector at the LHC its mass, width and couplings to other standard model particles. We also summarise highlights from searches for new physical phenomena in the Higgs sector as they are proposed in many extensions of the standard model flavour violating and invisible decay modes, resonances decaying into Higgs bosons and searches for additional Higgs bosons..
CMS-CR-2016-026.-
Geneva : CERN, 2016 - 7 p.
- Published in : Hyperfine Interact. 237 (2016) 109
Fulltext: PDF;
In : 6th International Symposium on Symmetries in Subatomic Physics, Victoria, Canada, 08 - 12 Jun 2015, pp.109
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8.
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The CMS Timing Control and Distribution System
/ Hegeman, Jeroen Guido (CERN) ; Andre, Jean-marc Olivier (Fermilab) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) ; Demiragli, Zeynep (MIT) ; Dobson, Marc (CERN) et al.
The Compact Muon Solenoid (CMS) experiment operating at the CERN (European Laboratory for Nuclear Physics) Large Hadron Collider (LHC) is in the process of upgrading several of its detector systems. Adding more individual detector components brings the need to test and commission those components separately from existing ones so as not to compromise physics data-taking. [...]
CMS-CR-2015-321.-
Geneva : CERN, 2016 - 4 p.
- Published in : 10.1109/NSSMIC.2015.7581984
Fulltext: PDF;
In : 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, San Diego, CA, USA, 31 Oct - 7 Nov 2015, pp.7581984
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9.
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A scalable monitoring for the CMS Filter Farm based on elasticsearch
/ Andre, Jean-marc Olivier (Fermilab) ; Andronidis, Anastasios (Ioannina U.) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) ; Dobson, Marc (CERN) ; Dupont, Aymeric (CERN) et al.
A flexible monitoring system has been designed for the CMS File-based Filter Farm making use of modern data mining and analytics components. All the metadata and monitoring information concerning data flow and execution of the HLT are generated locally in the form of small "documents" using the JSON encoding. [...]
CMS-CR-2015-060.-
Geneva : CERN, 2015 - 9 p.
- Published in : J. Phys.: Conf. Ser. 664 (2015) 082036
Fulltext: PDF; IOP Open Access article: PDF;
In : 21st International Conference on Computing in High Energy and Nuclear Physics, Okinawa, Japan, 13 - 17 Apr 2015, pp.082036
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10.
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Online data handling and storage at the CMS experiment
/ Andre, Jean-marc Olivier (Fermilab) ; Andronidis, Anastasios (Ioannina U.) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Chaze, Olivier (CERN) ; Demiragli, Zeynep (MIT) ; Dobson, Marc (CERN) ; Dupont, Aymeric (CERN) ; Erhan, Samim (UCLA) ; Gigi, Dominique (CERN) et al.
During the LHC Long Shutdown 1, the CMS Data Acquisition (DAQ) system underwent a partial redesign to replace obsolete network equipment, use more homogeneous switching technologies, and support new detector back-end electronics. The software and hardware infrastructure to provide input, execute the High Level Trigger (HLT) algorithms and deal with output data transport and storage has also been redesigned to be completely file- based. [...]
CMS-CR-2015-074.-
Geneva : CERN, 2015 - 9 p.
- Published in : J. Phys.: Conf. Ser. 664 (2015) 082009
Fulltext: PDF; IOP Open Access article: PDF;
In : 21st International Conference on Computing in High Energy and Nuclear Physics, Okinawa, Japan, 13 - 17 Apr 2015, pp.082009
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