CERN Accelerating science

CMS Conference Reports

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2017-09-18
09:45
Measurements of the top quark properties at decay with CMS / Castro, Andrea (INFN, Bologna ; Bologna U.) /CMS Collaboration
CMS measurements of top quark properties related to top decays are discussed. The results presented regard the measurement of the W boson helicity, the investigation of anomalous couplings in the Wtb vertex, and the search for very rare decays, such as t- gt Zq and t- gt Hq, which are associated to flavor-changing neutral currents..
CMS-CR-2017-252.- Geneva : CERN, 2017 - 6 p. Fulltext: PDF;
In : 2017 European Physical Society Conference on High Energy Physics, Venice, Italy, 05 - 12 Jul 2017

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2017-09-18
09:45
Measurement of single top quark production with CMS / Morton, Alexander (Brunel U.) /CMS Collaboration
Results of several single top physics measurements that the CMS Collaboration has produced in proton-proton collisions at the LHC at centre-of-mass energies of 7, 8 and 13 TeV, are presented. Separate investigations of the inclusive, fiducial, and differential cross section measurements in the t-channel, the production of top via the s-channel, and the measurements of standard model parameters and rare processes involving a top quark are discussed..
CMS-CR-2017-245.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF;
In : 20th High-Energy Physics International Conference in Quantum Chromodynamics, Montpellier, France, 3 - 7 Jul 2017

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2017-09-15
08:33
Underlying Event and Double Parton Scattering Measurements at CMS / Gupta, Rajat (Panjab U.) /CMS Collaboration
Recent results on the double parton scattering studies and measurement of the underlying event activity, performed using proton-proton collisions data collected using the CMS detector are presented. Comparisons to previous results at different center of mass energies are also reported..
CMS-CR-2017-239.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF;
In : 20th High-Energy Physics International Conference in Quantum Chromodynamics, Montpellier, France, 3 - 7 Jul 2017

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2017-09-13
13:53
Search for vector-like quarks and excited quarks at CMS / Rauco, Giorgia (Zurich U.) /CMS Collaboration
We present the results of the latest searches for new hypothetical heavy quarks using proton-proton collisions data collected with the CMS detector at the CERN LHC at a center-of-mass energy of 13 TeV. Vector-like quarks are postulated to solve the hierarchy problem and stabilize the Higgs mass and they are not constrained by the Higgs discovery and electroweak measurements, as for the case of a fourth generation of fermions. [...]
CMS-CR-2017-230.- 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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2017-09-11
16:42
Multiplicity dependence of the production of identified charged hadrons in pp and pPb collisions from CMS / Sikler, Ferenc (Budapest, RMKI) /CMS Collaboration
New results on transverse momentum spectra of identified charged hadrons in proton-proton collisions at $\sqrt{s} =$ 13 TeV are presented using the CMS detector at the LHC. Charged pions, kaons, and protons in the transverse-momentum range $p_\text{T} =$ 0.1--1.7 GeV/$c$ and for laboratory rapidities $\vert y\vert < 1$ are identified via their energy loss in the CMS silicon tracker. [...]
CMS-CR-2017-232.- 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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2017-09-11
11:08
Searches for high mass BSM scalars / Nam, Kyungwook (Seoul Natl. U.) /CMS Collaboration
Searches for BSM particles using the 126 GeV Higgs boson have been carried out with the CMS detector at LHC, based on pp collision data collected at centre-of-mass energies of 7, 8, and 13 TeV. The talk presents the latest results and gives a brief review of earlier results. [...]
CMS-CR-2017-229.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF;
In : 25th International Workshop on Deep Inelastic Scattering and Related Topics, Birmingham, UK, 03 - 07 Apr 2017

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2017-09-11
11:07
Single Boson Production Cross Section Measurements in CMS / Lee, Kyeongpil (Seoul Natl. U.) /CMS Collaboration
Measurements of single boson production cross sections are presented. They are based on proton-proton collision data at 8 and 13 TeV recorded with the CMS detector at the LHC. [...]
CMS-CR-2017-228.- 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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2017-09-11
11:07
Top quark pair production and modeling via QCD in CMS / Gonzalez Fernandez, Juan Rodrigo (Oviedo U.) /CMS Collaboration
Measurements of the inclusive and differential top quark pair ($\textrm{t}\bar{\textrm{t}}$~) production cross section at centre-of-mass energies of 13 TeV and 5.02 TeV are presented, performed using CMS data collected in 2015 and 2016. The inclusive cross section is measured in the lepton+jets, dilepton and fully hadronic channels. [...]
CMS-CR-2017-227.- Geneva : CERN, 2017 - 8 p. Fulltext: PDF;
In : 25th International Workshop on Deep Inelastic Scattering and Related Topics, Birmingham, UK, 03 - 07 Apr 2017

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2017-09-11
11:06
Highlights and perspectives from the CMS experiment / Butler, Joel Nathan (Fermilab) /CMS Collaboration
In 2016, the Large Hadron Collider provided proton-proton collisions at 13 TeV center-of-mass energy and achieved very high luminosity and reliablity. The performance of the CMS Experiment in this running period and a selection of recent physics results are presented. [...]
CMS-CR-2017-226.- Geneva : CERN, 2017 - 12 p. Fulltext: PDF;
In : 5th Conference on Large Hadron Collider Physics 2017, Shanghai, China, 15 - 20 May 2017

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2017-09-11
11:06
New results on collectivity with CMS / Milosevic, Jovan (VINCA Inst. Nucl. Sci., Belgrade) /CMS Collaboration
Nonlinear response coefficients of higher-order anisotropy harmonics for charged particles are measured in PbPb collisions at 2.76 and 5.02 TeV as a function of transverse momentum and collision centrality. The nonlinear response coefficients are obtained from $v_{n}$ harmonics measured with respect to their own plane and the mixed harmonics. [...]
CMS-CR-2017-223.- 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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