CERN Accelerating science

CMS Conference Reports

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2014-04-23
10:25
Heavy-Ion Results form the CMS Experiment / Boimska, Bozena (NCBJ, Swierk) /CMS Collaboration
The Compact Muon Solenoid experiment at the LHC accelerator uses various physics observables to study a hot and dense medium created in heavy-ion collisions. Understanding of the medium properties requires conducting studies for different colliding systems; these include PbPb collisions but also reference pp and pPb data. [...]
CMS-CR-2014-039.- Geneva : CERN, 2014 - 20 p. Fulltext: PDF;
In : XX Cracow Epiphany Conference on the Physics at the LHC, Cracow, Poland, 8 - 10 Jan 2014

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2014-04-23
10:25
Bottomonium production in pp, pPb, and PbPb collisions with CMS / Moon, Dong Ho (Illinois U., Chicago) /CMS Collaboration
The three Y states (1S, 2S, 3S) were measured separately using the Compact Muon Solenoid (CMS) experimental apparatus via their dimuon decays in pp and pPb collisions, in the rapidity range $-1.9 < y < 1.9$ in the centre-of-mass of the collision. The datasets used in the analysis correspond to recorded integrated luminosities of about 31/nb (pPb) and 5.1/pb (pp), collected in 2013 by the CMS experiment at the LHC, at a centre-of-mass energy per nucleon-nucleon pair of 5.02 TeV and 2.76 TeV respectively. [...]
CMS-CR-2014-044.- Geneva : CERN, 2014 - 6 p. Fulltext: PDF;
In : 6th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions, Cape Town, South Africa, 4 - 8 Nov 2013

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2014-04-23
10:25
Correlations and flow phenomena in pPb and PbPb at CMS / Li, Wei (Rice U.) /CMS Collaboration
Recent measurements of correlation and flow phenomena in pPb and PbPb collisions from the CMS experiment are presented. Higher-order flow Fourier harmonics ($v_n$) are systematically studied in PbPb collisions using various methods. [...]
CMS-CR-2014-040.- Geneva : CERN, 2014 - 7 p. Fulltext: PDF;
In : 6th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions, Cape Town, South Africa, 4 - 8 Nov 2013

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2014-04-23
10:25
Top Quark Production at CMS / Diez, Carmen (DESY) /CMS Collaboration
An overview of recent measurements of top quark pair production is presented, including inclusive cross sections as well as differential distributions. The production of single top quarks via the three processes, t-channel, s-channel, and tW-associated production is also discussed. [...]
CMS-CR-2014-037.- Geneva : CERN, 2014 - 8 p. Fulltext: PDF;
In : 28ème Rencontres de Physique de La Vallée d'Aoste, La Thuile, Vallee d'Aoste, Italy, 23 Feb - 1 Mar 2014

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2014-04-23
10:25
Mueller-Navelet jets at CMS / Misiura, Maciej (Warsaw U.) /CMS Collaboration
In this paper a brief description of a measurement of Mueller-Navalet dijet angular decorrelations is presented. The measurement is sensitive to effects of BFKL evolution. [...]
CMS-CR-2014-036.- Geneva : CERN, 2014 - 6 p. Fulltext: PDF;
In : XX Cracow Epiphany Conference on the Physics at the LHC, Cracow, Poland, 8 - 10 Jan 2014

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2014-04-23
10:12
Measurements of Top-Quark Properties at CMS / Chao, Yuan (Taiwan, Natl. Taiwan U.) /CMS Collaboration
Recent measurements of top-quark properties by the CMS experiment are presented. The measurements were performed using the data collected in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV in the years 2011 and 2012. [...]
CMS-CR-2014-033.- Geneva : CERN, 2014 - 8 p. Fulltext: PDF;
In : 28ème Rencontres de Physique de La Vallée d'Aoste, La Thuile, Vallee d'Aoste, Italy, 23 Feb - 1 Mar 2014

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2014-04-23
10:11
Rate-capability study for a four-gap phenolic RPC with a Cs-137 source / Lee, Kyong Sei (Korea U.) /CMS Collaboration
We report test results of a prototype four-gap phenolic resistive plate chamber (RPC) with high-rate gamma rays irradiated from a 200-mCi 137Cs source. The detector signals of the prototype four-gap RPC were digitized at charge thresholds of 80, 130, and 170 fC by using a 32-channel front-end-electronics board, previously developed for the current double-gap RPCs in CMS. [...]
CMS-CR-2014-031.- Geneva : CERN, 2014 - 9 p. Fulltext: PDF;

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2014-04-23
10:11
Measurement of b-jet fraction and nuclear modification factors in PbPb collisions at sqrt{sNN}= 2.76 TeV with CMS / Jung, Kurt (Purdue U.) /CMS Collaboration
Modification to jets in high-energy heavy-ion collisions is expected to depend on the flavor of the fragmenting parton. To disentangle this flavor dependence, jets from heavy quark fragmentation are identified in heavy ion collisions. [...]
CMS-CR-2014-030.- Geneva : CERN, 2014 - 5 p. Fulltext: PDF;
In : 6th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions, Cape Town, South Africa, 4 - 8 Nov 2013

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2014-04-23
10:11
Diboson and EWK Physics at CMS / Calderon Tazon, Alicia (Cantabria Inst. of Phys.) /CMS Collaboration
We present the most recent studies of diboson production and electroweak physics in proton-proton collisions at 7 TeV and 8 TeV center-of-mass energy based on data recorded by the CMS detector at the LHC in 2011 and 2012. These include precise measurements of $\gamma\gamma$, ZZ and WZ production. [...]
CMS-CR-2014-029.- Geneva : CERN, 2014 - 9 p. Fulltext: PDF;
In : 28ème Rencontres de Physique de La Vallée d'Aoste, La Thuile, Vallee d'Aoste, Italy, 23 Feb - 1 Mar 2014

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2014-04-23
10:11
Dijet measurements in pPb collisions at $\sqrt{s_{NN}} = 5.02$ TeV / Gulhan, Doga Can (MIT) /CMS Collaboration
Results on dijet production in pPb collisions at $5.02$ TeV are discussed. The dijet momentum balance, azimuthal angle correlations, and pseudorapidity distributions are studied as a function of the transverse energy in the forward calorimeters ($\rm{E}_{T}^{\eta>4}$). [...]
CMS-CR-2014-027.- Geneva : CERN, 2014 - 5 p. Fulltext: PDF;
In : 6th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions, Cape Town, South Africa, 4 - 8 Nov 2013

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