CMS Conference Reports

უკანასკნელი დამატებები:
2018-12-12
09:54
 Evidence for light-by-light scattering and limits on axion-like-particles from ultraperipheral PbPb collisions at 5 TeV / Niedziela, Jeremi (CERN) /CMS Collaboration A measurement of light-by-light scattering, $\gamma\gamma \rightarrow \gamma\gamma$, in ultraperipheral PbPb collisions at a centre-of-mass energy per nucleon pair of $5.02$ TeV is reported. The analysis is conducted using a data sample corresponding to an integrated luminosity of $390~\mu \rm{b}^{-1}$ recorded by the CMS experiment at the LHC. [...] CMS-CR-2018-403.- Geneva : CERN, 2018 - 6 p. Fulltext: PDF; In : Hard Probes 2018: International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions, Aix-les-bains, France, 1 - 5 Oct 2018

2018-12-12
09:54
 Particle Flow reconstruction in the Level-1 trigger at CMS for the HL-LHC / Petrucciani, Giovanni (CERN) /CMS Collaboration With the planned addition of the tracking information in the Level-1 trigger in CMS for the HL-LHC, the algorithms for the Level-1 trigger can be completely reconceptualized. Following the example for offline reconstruction in CMS to use complementary subsystem information and mitigate pileup, we explore the feasibility of using Particle Flow-like and pileup-per-particle identification techniques at the hardware trigger level. [...] CMS-CR-2018-401.- Geneva : CERN, 2018 - 6 p. Fulltext: PDF; In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018

2018-12-12
09:12
 Charged Higgs searches at CMS / Yu, Geum Bong (Seoul Natl. U.) /CMS Collaboration Observation of charged Higgs bosons would be a strong evidence of new physics beyond the standard model. An overview of the latest results on the charged Higgs boson searches, as of August 2018, performed by the CMS collaboration is presented.. CMS-CR-2018-389.- Geneva : CERN, 2018 - 5 p. Fulltext: PDF; In : 25th Rencontres du Vietnam, Quy Nhon, Vietnam, 5 - 11 Aug 2018

2018-12-12
09:12
 Search for charged Higgs bosons with the $\text{H}^{\pm} \rightarrow \tau^{\pm}\nu_{\tau}$ decay channel / Eysermans, Jan (Puebla U., Inst. Fis.) ; Pedraza Morales, Maria Isabel (Puebla U., Inst. Fis.) /CMS Collaboration A search for charged Higgs bosons decaying into a tau lepton and a neutrino is presented in the hadronic and leptonic final states. The search is based on the 13 TeV dataset with 35.9 fb$^{-1}$ of integrated luminosity collected with the CMS experiment in 2016. [...] CMS-CR-2018-361.- Geneva : CERN, 2018 - 10 p. Fulltext: PDF; In : 7th workshop on prospects for charged Higgs discovery at colliders, Uppsala, Sweden, 25 - 28 Sep 2018

2018-12-12
09:12
 Characterization of the first prototype of the Silicon-Strip readout ASIC (SSA) for the CMS Outer-Tracker phase-2 upgrade / Caratelli, Alessandro (CERN) ; Scarfi', Simone (CERN) ; Ceresa, Davide (CERN) ; De Clercq, Jarne Theo (Vrije U., Brussels) ; Haranko, Mykyta (DESY) ; Jan Kaplon ; Kloukinas, Konstantinos (CERN) ; Yusuf Leblebici The silicon strip readout ASIC (SSA) for the CMS Outer Tracker PS module was prototyped in a $$65\,nm$$ CMOS technology and characterized utilizing a custom made test bench based on the FC7 $$\mu$$TCA FPGA card. The ASIC has been evaluated and characterised under different working temperatures and radiation levels up to $$200\,Mrad$$. [...] CMS-CR-2018-286.- Geneva : CERN, 2018 - 6 p. Fulltext: PDF; In : Topical Workshop on Electronics for Particle Physics, Antwerp, Belgique, 17 - 21 Sep 2018

2018-12-10
16:09
 The CMS Tracker Upgrade for the High Luminosity LHC / Delcourt, Martin (Louvain U.) /CMS Collaboration The LHC machine is planning an upgrade program which will smoothly bring the luminosity to about $5\times10^{34}$cm$^{-2}$s$^{-1}$ in 2028, to possibly reach an integrated luminosity of 4000fb$^{-1}$ by the end of 2037. This High-Luminosity LHC scenario, HL-LHC, will require a preparation program of the LHC detectors known as Phase-2 upgrades. [...] CMS-CR-2018-086.- Geneva : CERN, 2018 - 5 p. Fulltext: PDF; In : Frontier Detectors for Frontier Physics XIV Pisa Meeting on Advanced Detectors, La Biodola, Isola D'elba, Italy, 27 May - 2 Jun 2018

2018-12-10
16:07
 The upgraded front-end electronics of the CMS electromagnetic calorimeter for the HL-LHC / Cometti, Simona (INFN, Turin) /CMS Collaboration The Compact Muon Solenoid detector was originally designed to operate for about ten years, for LHC instantaneous luminosity up to 1$\cdot$10$^{34}$ cm$^{-2}$ s$^{-1}$ and integrated luminosity of 500 fb$^{-1}$. The High Luminosity LHC will increase the instantaneous luminosity by about a factor of 5 from current levels and CMS will accumulate an integrated luminosity of 3000 fb$^{-1}$ by about 2035.With such high luminosity the electromagnetic calorimeter of CMS will have to cope with a challenging increase in number of interactions per bunch crossing and in radiation levels.The front-end readout electronics will be completely redesigned, with the goals of providing precision timing, low noise, sampling rate 4 times higher than the current one and added flexibility in the trigger system.. CMS-CR-2018-129.- Geneva : CERN, 2018 - 4 p. Fulltext: PDF; In : 17th Incontri di Fisica delle Alte Energie, Milan, Italy, 04 - 06 Apr 2018

2018-12-10
16:07
 Anomaly detection using Deep Autoencoders for the assessment of the quality of the data acquired by the CMS experiment / Pol, Adrian Alan (CERN) /CMS Collaboration The certification of the CMS experiment data as usable for physics analysis is a crucial task to ensure the quality of all physics results published by the collaboration. Currently, the certification conducted by human experts is labor intensive and based on the scrutiny of distributions integrated on several hours of data taking. [...] CMS-CR-2018-202.- Geneva : CERN, 2018 - 6 p. Fulltext: PDF; In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018

2018-12-10
16:07
 CMS ECAL Detector Control System Upgrade Plan for the CERN Large Hadron Collider Long Shutdown II / Jimenez Estupinan, Raul (Zurich, ETH) /CMS Collaboration The Electromagnetic Calorimeter (ECAL) is one of the detectors of the Compact Muon Solenoid (CMS) experiment at the CERN Large Hadron Collider (LHC). The ECAL Detector Control System (DCS) software has been implemented using the WinCC Open Architecture (OA) platform. [...] CMS-CR-2018-230.- Geneva : CERN, 2018 - 5 p. Fulltext: PDF; In : 12th International Workshop on Personal Computers and Particle Accelerator Controls, Hsinchu, Taiwan, 16 - 19 Oct 2018

2018-12-10
16:05
 A 65 nm Data Concentration ASIC for the CMS Outer Tracker Detector Upgrade at HL-LHC / Nodari, Benedetta (Lyon, IPN) ; Caponetto, Luigi (Lyon, IPN) ; Galbit, Geoffrey Christian (Lyon, IPN) ; Scarfi', Simone (CERN) ; Viret, Sebastien (Lyon, IPN) The Concentrator Integrated Circuit (CIC) ASIC is a front-end chip for both Pixel-Strip (PS) and Strip-Strip (2S) modules of the future Phase-II CMS Outer Tracker upgrade at the High Luminosity LHC (HL-LHC). It collects the digital data coming from eight upstream front-end chips (either MPAs or CBCs, depending on the module type), formats the signal in data packets containing the trigger information from eight bunch crossings and the raw data from events passing the first trigger level, and finally transmits them to the LpGBT unit. [...] CMS-CR-2018-278.- Geneva : CERN, 2018 - 6 p. Fulltext: PDF; In : Topical Workshop on Electronics for Particle Physics, Antwerp, Belgique, 17 - 21 Sep 2018