![Measurement of Wγγ [W-gamma-gamma] Production in Proton-proton Collisions and Limits on Anomalous Quartic Gauge Couplings Using the ATLAS Detector PDF](https://books.google.com/books/content/images/frontcover/LGXTzQEACAAJ?fife=w150-h200)
Author: Veit ScharfPublisher:
ISBN:
Category :
Languages : en
Pages : 139
Book Description
Measurement of Wγγ [W-gamma-gamma] Production in Proton-proton Collisions and Limits on Anomalous Quartic Gauge Couplings Using the ATLAS Detector
![Measurement of Wγγ [W-gamma-gamma] Production in Proton-proton Collisions and Limits on Anomalous Quartic Gauge Couplings Using the ATLAS Detector PDF](https://books.google.com/books/content/images/frontcover/LGXTzQEACAAJ?fife=w80-h100)
Author: Veit ScharfMeasurement of W [gamma] [gamma] Production in Proton-proton Collisions and Limits on Anomalous Quartic Gauge Couplings Using the ATLAS Detector
![Measurement of W [gamma] [gamma] Production in Proton-proton Collisions and Limits on Anomalous Quartic Gauge Couplings Using the ATLAS Detector PDF](https://books.google.com/books/content/images/frontcover/QxY1jwEACAAJ?fife=w80-h100)
Author: Measurement of W\gamma\gamma Production in Proton-proton Collisions and Limits on Anomalous Quartic Gauge Couplings Using the ATLAS Detector
Author: Veit Lorenz ScharfPublisher:
ISBN:
Category : Bosons
Languages : en
Pages :
Book Description
A Measurement of the W±Z Production Cross Section and Limits on Anomalous Trilinear Gauge Couplings in Proton-proton Collisions at √s
Author: Advait Neel NagarkarPublisher:
ISBN:
Category :
Languages : en
Pages : 73
Book Description
I present a measurement of the W±Z production cross section in the leptonic final states in pp collisions at √s = 7 TeV and limits on anomalous trilinear gauge couplings, using 4.64 fb-1 of data collected using the ATLAS experiment at the LHC. The production cross section has been determined to be 19.0+1.4-1.3(stat.)±0.9(syst.)±0.4(lumi.) pb, in agreement with the Standard Model (SM) expectation of 17.6+1.1-1.0 pb. A search for anomalous trilinear gauge couplings has been conducted and limits have been set at the 95% confidence level; the result is consistent with the SM couplings.
Measurement of W-gamma and Z-gamma Production in Pp Collisions at Sqrt(s)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 32
Book Description
A measurement of W-gamma and Z-gamma production in proton-proton collisions at sqrt(s) = 7 TeV is presented. Results are based on a data sample recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 36 inverse picobarns. The electron and muon decay channels of the W and Z are used. The total cross sections are measured for photon transverse energy>10 GeV and spatial separation from charged leptons in the plane of pseudorapidity and azimuthal angle>0.7, and with an additional dilepton invariant mass requirement of> 50 GeV for the Z-gamma process. The following cross section times branching fraction values are found: sigma(pp to W-gamma+X) B(W to lepton neutrino) = 56.3 +/- 5.0 (stat.) +/- 5.0 (syst.) +/- 2.3 (lumi.) pb and sigma(pp to Z-gamma+X) B}(Z to lepton lepton) = 9.4 +/- 1.0 (stat.) +/- 0.6 (syst.) +/- 0.4 (lumi.) pb. These measurements are in agreement with standard model predictions. The first limits on anomalous WW gamma, ZZ gamma, and Z gamma gamma trilinear gauge couplings at sqrt(s) = 7 TeV are set.
Evidence for Exclusive $\gamma\gamma \to W^+ W^-$ Production and Constraints on Anomalous Quartic Gauge Couplings at $\sqrt{s}
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A search for exclusive or quasi-exclusive gamma-gamma to W+W- production, via pp to p(*) W+W- p(*) to p(*) mu+/- e-/+ at sqrt(s)=8 TeV, is reported using data corresponding to an integrated luminosity of 19.7 inverse femtobarns. Events are selected by requiring the presence of an electron-muon pair with large transverse momentum pt(mu+/- e-/+>) 30 GeV, and no associated charged particles detected from the same vertex. The 8 TeV results are combined with the previous 7 TeV results (obtained for 5.05 inverse femtobarns of data). In the signal region, 13 (2) events are observed over an expected background of 3.9 +/- 0.6 (0.84 +/-0.15) events for 8 (7) TeV, resulting in a combined excess of 3.4 sigma over the background-only hypothesis. The observed yields and kinematic distributions are compatible with the standard model prediction for exclusive and quasi-exclusive gamma-gamma to W+W- production. Upper limits on the anomalous quartic gauge coupling operators a[W;0,C] (dimension-6) and f[M0,1,2,3] (dimension-8), the most stringent to date, are derived from the measured dilepton transverse momentum spectrum.
Measurement of W[plus][minus]W[plus][minus] Vector-boson Scattering and Limits on Anomalous Quartic Gauge Couplings with the ATLAS Detector
![Measurement of W[plus][minus]W[plus][minus] Vector-boson Scattering and Limits on Anomalous Quartic Gauge Couplings with the ATLAS Detector PDF](https://books.google.com/books/content/images/frontcover/jQikzwEACAAJ?fife=w80-h100)
Author: ATLAS Collaboration CERNPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Observation of the Triboson Process Pp → W±W∓γ and Limits on Anomalous Quartic Gauge Couplings with the ATLAS Detector
Author: Daniel WilbernPublisher:
ISBN:
Category : Higgs bosons
Languages : en
Pages : 0
Book Description
Measurement of the Z[gamma] Production Cross Section in Pp Collisions at 8 TeV and Search for Anomalous Triple Gauge Boson Couplings
![Measurement of the Z[gamma] Production Cross Section in Pp Collisions at 8 TeV and Search for Anomalous Triple Gauge Boson Couplings PDF](https://books.google.com/books/content/images/frontcover/5USCAQAACAAJ?fife=w80-h100)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 40
Book Description
The cross section for the production of Z[gamma] in proton-proton collisions at 8 TeV is measured based on data collected by the CMS experiment at the LHC corresponding to an integrated luminosity of 19.5 fb−1. Events with an oppositely-charged pair of muons or electrons together with an isolated photon are selected. The differential cross section as a function of the photon transverse momentum is measured inclusively and exclusively, where the exclusive selection applies a veto on central jets. The observed cross sections are compatible with the expectations of next-to-next-to-leading-order quantum chromodynamics. Limits on anomalous triple gauge couplings of ZZ[gamma] and Z[gamma][gamma] are set that improve on previous experimental results obtained with the charged lepton decay modes of the Z boson.
![Measurement of the Z[gamma][gamma] Production Cross Section at Proton-proton Collisions with the CMS Experiment PDF](https://books.google.com/books/content/images/frontcover/qbWdAQAACAAJ?fife=w80-h100)
Author: Sachiko Toda McBride