CERN Accelerating science

CMS Conference Reports

新增:
2017-10-16
11:09
Di- and Multi-boson Measurements in CMS / Long, Kenneth David (Wisconsin U., Madison) /CMS Collaboration
Recent results from the CMS experiment on the production of multiple vector bosons in proton-proton collisions at the CERN LHC are presented. Measurements of WZ and ZZ production with fully leptonic decays, Z$(\nu\nu)\gamma$, and WV (V $=$ W,Z $\rightarrow q\bar{q}$) production at 8 and 13 TeV are discussed. [...]
CMS-CR-2017-364.- Geneva : CERN, 2017 - 8 p. Fulltext: PDF;
In : 5th Conference on Large Hadron Collider Physics 2017, Shanghai, China, 15 - 20 May 2017

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2017-10-16
11:09
Particle production and collectivity in high-multiplicity pp and pPb collisions at the LHC with CMS / Stephans, George Stewart (MIT) /CMS Collaboration
Recent unexpected evidence for collectivity in high multiplicity pp and pPb collisions at LHC energies has challenged the notion that such small systems do not exhibit any of the properties that have been used to study the quark gluon plasma in heavy ion collisions. An overview of recent results concerning particle production and collectivity in such collisions using the CMS detector at the LHC is presented..
CMS-CR-2017-363.- Geneva : CERN, 2017 - 5 p. Fulltext: PDF;
In : 17th International Conference on Strangeness in Quark Matter , Utrecht, The Netherlands, 10 - 15 Jul 2017

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2017-10-16
11:08
Measurements of associated production of vector bosons and jets in CMS / Ahmad, Muhammad (Beijing, Inst. High Energy Phys.) /CMS Collaboration
The most recent results of Standard Model physics using 8 and 13 TeV proton-proton collisions data recorded by CMS detector during the LHC Run I and II are reviewed. This overview includes studies of several results of vector boson production in association with jets. [...]
CMS-CR-2017-362.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF;
In : 5th Conference on Large Hadron Collider Physics 2017, Shanghai, China, 15 - 20 May 2017

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2017-10-16
11:07
Boosted Decision Trees in the CMS Level-1 Endcap Muon Trigger / CMS Collaboration
The first implementation of Boosted Decision Trees (BDTs) inside a Level-1 trigger system at the LHC is presented. The Endcap Muon Track Finder (EMTF) at CMS uses BDTs to infer the momentum of muons in the forward region of the detector, based on 25 different variables. [...]
CMS-CR-2017-361.- Geneva : CERN, 2017 - 6 p. Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics, Santa Cruz, Ca, United States Of America, 11 - 14 Sep 2017

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2017-10-16
11:07
Measurement of high-mass dilepton production with the CMS-TOTEM Precision Proton Spectrometer / Shchelina, Ksenia (INFN, Turin ; Turin U.) /CMS and TOTEM Collaborations
The measurements of dilepton production in photon-photon fusion with the CMS-TOTEM Precision Proton Spectrometer (CT-PPS) are presented. For the first time, exclusive dilepton production at high masses have been observed in the CMS detector while one or two outgoing protons are measured in CT-PPS using around 10~${\rm fb}^{-1}$ of data accumulated in 2016 during high-luminosity LHC operation. [...]
CMS-CR-2017-355.- Geneva : CERN, 2017 - 8 p. Fulltext: PDF;
In : 2017 European Physical Society Conference on High Energy Physics, Venice, Italy, 05 - 12 Jul 2017

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2017-10-16
11:06
The CMS Tracker upgrade for HL-LHC / Ahuja, Sudha (SAO_PAULO) /CMS Collaboration
The LHC machine is planning an upgrade program which will smoothly bring the luminosity to about 5 $\times$ $10^{34} $cm$^{-2}$s$^{-1}$ in 2028, to possibly reach an integrated luminosity of 3000 fb$^{-1}$ 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 upgrade. [...]
CMS-CR-2017-341.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF;
In : 2017 European Physical Society Conference on High Energy Physics, Venice, Italy, 05 - 12 Jul 2017

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2017-10-16
11:06
Searches for strong production of supersymmetry at ATLAS and CMS / Seitz, Claudia (Zurich U.) /ATLAS and CMS Collaborations
Searches for physics beyond the standard model are considered one of the corner stones of the physics program at the two multipurpose experiments, ATLAS and CMS, at the LHC. Both experiments have conducted numerous searches for new supersymmetric particles in a wide variety of final states at a center-of-mass energy of $\sqrt{s} = 13$~TeV. [...]
CMS-CR-2017-309.- Geneva : CERN, 2017 - 13 p. Fulltext: PDF;
In : 5th Conference on Large Hadron Collider Physics 2017, Shanghai, China, 15 - 20 May 2017

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2017-10-16
11:06
Searches for diboson resonances in CMS / Huang, Huang (Peking U.) /CMS Collaboration
A list of searches is presented for massive resonances decaying to WW, WZ, ZZ, WH, ZH and HH boson pairs in proton-proton collision data collected by the CMS experiment at the LHC. The data are taken at centre-of-mass energies of 13TeV, corresponding to respective integrated luminosities of 12.9/fb(ICHEP) and up to 35.9/fb. The results are interpreted in the context of heavy vector triplet and singlet models that mimic properties of composite-Higgs models predicting $W'$ and $Z'$ bosons decaying to WZ, WW, WH, and ZH bosons. A model with a bulk graviton that decays into WW and ZZ is also considered. Upper limits are set on the production cross section of the two models and no evidence is found for a signal..
CMS-CR-2017-306.- Geneva : CERN, 2017 - 10 p. Fulltext: PDF;
In : 5th Conference on Large Hadron Collider Physics 2017, Shanghai, China, 15 - 20 May 2017

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2017-10-16
11:06
Development and Integration of the CT-PPS Fast Simulation in the CMS Software / Fonseca De Souza, Sandro (Rio de Janeiro State U.) /CMS and TOTEM Collaborations
CT-PPS (CMS-TOTEM Precision Proton Spectrometer) is a joint project of the CMS and TOTEM collaborations with the goal of studying central exclusive production (CEP) in proton-proton collisions. A simplified simulation and reconstruction code for CT-PPS has been implemented in the CMS fast simulation package FastSim. [...]
CMS-CR-2017-276.- Geneva : CERN, 2017 - 5 p. Fulltext: PDF;
In : 2017 European Physical Society Conference on High Energy Physics, Venice, Italy, 05 - 12 Jul 2017

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2017-10-13
07:42
Electroweak boson production with jets at CMS / Hortiangtham, Apichart (Northeastern U.) /CMS Collaboration
The production of electroweak bosons (W, Z or gamma) in association with jets is a stringent test of perturbative QCD and is a background process in searches for new physics. Total and differential cross-section measurements of electroweak bosons produced in association with jets (and heavy flavour quarks) in proton-proton collisions are presented. [...]
CMS-CR-2017-356.- Geneva : CERN, 2017 - 5 p. Fulltext: PDF;
In : 29th Rencontres de Blois, Blois, France, 28 May - 2 Jun 2017

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