CERN Accelerating science

CMS Conference Reports

Ultimi arrivi:
2014-04-03
16:04
Jet shape and fragmentation function measurements with CMS / Mao, Yaxian (Vanderbilt U.) /CMS Collaboration
We present measurements of the jet fragmentation functions and transverse momentum profiles (shapes) in PbPb collisions at 2.76 TeV per nucleon-pair center of mass energy with the CMS detector. Jets are reconstructed by the anti-$k_{T}$ sequential clustering algorithm with a resolution parameter of 0.3, using particle-flow objects that combine tracking and calorimetric information. [...]
CMS-CR-2014-028.- 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

Record dettagliato - Record simili
2014-04-03
16:03
LHC top mass alternative methods and prospects for the future / Kim, Min Suk (CHEP, Taegu)
Future lepton colliders will have a rich top quark physics program which would add to our understanding of this interesting quark and promise an ultimate precision on the experimental knowledge of top-quark mass. [...]
CMS-CR-2014-023 ; arXiv:1404.1013.
- 2014. - 6 p.
Full text - Preprint

Record dettagliato - Record simili
2014-04-03
16:03
Isolated photon measurements in pp and PbPb collisions with CMS / Barbieri, Richard Alexander (MIT) /CMS Collaboration
We report new measurements using isolated photons based on the high statistics 2.76 TeV pp reference data collected in 2013. The nuclear modification factors of reconstructed isolated photons, obtained by the comparison of heavy ion collisions and pp data, are presented and provide useful constraints to the nuclear parton distribution functions. [...]
CMS-CR-2014-020.- 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

Record dettagliato - Record simili
2014-04-03
16:01
SM and BSM Higgs results from the CMS experiment / Kalinowski, Artur (Warsaw U.) /CMS Collaboration
Results of CMS Collaboration Higgs boson searches based on the Run 1 LHC data are presented. Details of searches in various Standard Model Higgs decay modes are presented. [...]
CMS-CR-2014-018.- Geneva : CERN, 2014 - 13 p. Fulltext: PDF;

Record dettagliato - Record simili
2014-04-03
16:01
Higgs Boson at the CMS experiment / Choudhury, Somnath (DESY) /CMS Collaboration
The results of the Standard Model Higgs Boson search with the CMS detector at the Large Hadron Collider at CERN with proton-proton collision data corresponding to integrated luminosities of around 5 fb$^{-1}$ at 7 TeV and 20 fb$^{-1}$ at 8 TeV center-of-mass energies are presented. The analysis in the most sensitive decay modes in 2 photons, ZZ$^*\rightarrow$4$\ell$, WW$\rightarrow$2$\ell$2$\nu$, tau lepton pair and bottom quark pair final states followed by the discovery of the Higgs Boson around a mass of 125 GeV is reported. [...]
CMS-CR-2014-015.- Geneva : CERN, 2014 - 7 p. Fulltext: PDF;
In : 16th Lomonosov Conference on Elementary Particle Physics, Moscow, Russia, 22 - 28 Aug 2013

Record dettagliato - Record simili
2014-04-02
16:22
ATLAS, CMS and LHCb Trigger/DAQ systems for flavour physics / Guiducci, Luigi (INFN, Bologna ; Bologna U.) /ATLAS, CMS and LHCB Collaborations
Trigger systems of LHC detectors play a crucial role in the physics yeld of the experiments. A reduction of several orders of magnitude of the event rate is needed to reach values compatible with detector readout capability and with offline storage and analysis capability. [...]
CMS-CR-2013-171.- Geneva : CERN, 2013 - 12 p. Fulltext: PDF;
In : 14th International Conference on B-Physics at Hadron Machines, Bologna, Italy, 8 - 12 Apr 2013

Record dettagliato - Record simili
2014-04-02
10:47
Transverse momentum and pseudorapidity dependence of charged particle production and nuclear modification factor in proton-lead collisions at $\sqrt{s_{\rm NN}}=5.02$~TeV with CMS / Krajczar, Krisztian (CERN) /CMS Collaboration
The transverse momentum ($p_{\rm T}$) spectra of charged particles atvarious pseudorapidity ranges up to a $p_{\rm T}$ of 100~GeV/{\it c} arepresented for proton-lead collisions at $\sqrt{s_{\rm NN}}=5.02$~TeV.The nuclear modification factor is measured by dividing the measuredmid-pseudorapidity proton-lead spectrum by a proton-proton referencedistribution constructed based on earlier measurements at severalcollisions energies using an interpolation method. In addition, theasymmetries in the charge particle yields between positive and negativepseudorapidity ranges are presented as a function of $p_{\rm T}$ up to100~GeV/{\it c}..
CMS-CR-2014-025.- 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

Record dettagliato - Record simili
2014-03-31
15:09
Measurement of double$~\mathrm{J}\hspace{-.08em}/\hspace{-.14em}\psi~$productions with the CMS detector / Ciangottini, Diego (INFN, Perugia ; Perugia U.) /CMS Collaboration
We present the new measurement of the cross section for the simultaneous production of two $~\mathrm{J}\hspace{-.08em}/\hspace{-.14em}\psi~$ mesons in proton-proton collisions at 7 TeV with the CMS detector. The two$~\mathrm{J}\hspace{-.08em}/\hspace{-.14em}\psi~$mesons are fully reconstructed in the $\mu^+\mu^-$ decay and the signal yield is extracted with an extended maximum likelihood fit. [...]
CMS-CR-2014-017.- Geneva : CERN, 2014 - 4 p. Fulltext: PDF;
In : 4th International Workshop on Multi-Parton Interactions at the LHC, Antwerp, Belgium, 2 - 6 Dec 2013

Record dettagliato - Record simili
2014-03-21
15:21
Study of dijet momentum balance and pseudorapidity in pPb collisions with CMS / Lee, Yen-Jie (MIT) /CMS Collaboration
Studies of dijet production in pPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV using the CMS detector are presented. Jets are reconstructed with the anti-kT algorithm with R=0.3, using combined information from tracking and calorimetry. [...]
CMS-CR-2014-014.- Geneva : CERN, 2014 - 15 p. Fulltext: PDF;

Record dettagliato - Record simili
2014-03-21
15:21
Search for Higgs boson in CMS experiment / Volpe, Roberta (Taiwan, Natl. Central U.) /CMS Collaboration
The recent Higgs results from CMS based on the data collected in 2011 and 2012 at 7 and 8TeV centre-of-mass energy, corresponding to integrated luminosities of 5 and 20 fb$^{-1}$, are described. The observed new boson witha measured mass of about $125.7 \pm 0.3$(stat.) $\pm$ 0.3(syst.) GeV is found to beconsistent with the Standard Model Higgs boson in all investigated properties
CMS-CR-2014-011.- Geneva : CERN, 2014 - 17 p. Fulltext: PDF;
In : The XXI International Workshop High Energy Physics and Quantum Field Theory, Saint Petersburg, Russia, 23 - 30 Jun 2013

Record dettagliato - Record simili