Дисертації з теми "Triple Gauge Boson Couplings"
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Lloyd, Alun Wyn. "A measurement of triple gauge boson couplings in fully leptonic W decays." Thesis, University of Birmingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369082.
Повний текст джерелаUchida, Yoshi 1971. "Observations and measurement of W boson production and triple gauge couplings at LEP II." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/8279.
Повний текст джерелаIncludes bibliographical references (leaves 48-52).
W-Pair and Single-W production events are observed at LEP, the Large Electron Positron collider at CERN, using the L3 detector. All decay channels are considered, and data taken in the years 1998 and 1999, with electron-positron collision centre-of-mass energies from 189 GeV to 202 GeV are analysed. The integrated luminosity of the analysed data corresponds to approximately 400pb-1, and a total of approximately 5000 W-pair events and 100 single-W events are selected. The observed cross sections of these W production processes and the differential distributions of the event shapes are then used to measure the couplings of Wbosons with Z bosons and photons. Emphasis is placed on the unambiguous and efficient combination of the information from the different production and decay channels. For the couplings in the model in which gauge invariance is realised linearly, the following results are obtained ... where the errors shown are statistical, systematic and theoretical respectively. All results show consistency with expectations from the Standard Model.
by Yoshiyuki Uchida.
Ph.D.
Verzocchi, Marco. "Measurement of Single W Production and Triple Gauge Boson Couplings in e+ e- Collisions at sqrt(s) = 161 - 189 GeV." Freiburg i. Br. : Universität, 2000. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB8486389.
Повний текст джерелаFischer, Julia [Verfasser]. "Measurement of electroweak W + Jets Production and Search for anomalous Triple Gauge Boson Couplings with the ATLAS Experiment at √ s = 8TeV / Julia Fischer." Wuppertal : Universitätsbibliothek Wuppertal, 2016. http://d-nb.info/112033781X/34.
Повний текст джерелаMadsen, Paul E. (Paul Edward) Carleton University Dissertation Physics. "Probing anomalous contributions to triple boson couplings." Ottawa, 1994.
Знайти повний текст джерелаTobin, Mark. "A measurement of triple gauge couplings with DELPHI at LEP2." Thesis, University of Liverpool, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250480.
Повний текст джерелаLi, Shu. "Mesure de la production W+W− dans les collisions proton-proton à $\sqrt{s} = 7 TeV avec le détecteur ATLAS au LHC." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM4107.
Повний текст джерелаThis thesis presents a measurement of the SM WW production cross section and the determination of the corresponding limits on anomalous triple gauge boson couplings (aTGCs), using the 2011 4.7 fb⁻¹ pp collisions data at 7 TeV collected in 2011. The measurement allows for a stringent test of the non-Abelian SU(2) X U(1) SM electroweak sector and probes new physics that could manifest itself through aTGCs that may alter the observed production cross section or kinematic distributions. This measurement also provides a good understanding of the irreducible background in searches for the Higgs boson through the H → W⁺W⁻ decay channel.This thesis work has laid a solid foundation for further measurements of the WW production with the ∼25 fb⁻¹ integrated luminosity 8 TeV recorded data expected by the end of 2012, which will further improve the precision and yield more stringent limits on the aTGCs
Rosten, Jonatan Hans Niclas. "The ZZ → 4l process and anomalous triple gauge couplings with ATLAS at the LHC." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/271838.
Повний текст джерелаButtinger, William Christopher Jan. "ZZ production and limits on anomalous triple gauge couplings with the ATLAS experiment at the LHC." Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648681.
Повний текст джерелаSekaric, Jadranka. "Studies of gauge boson production with a gamma-gamma collider at TESLA." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2006. http://dx.doi.org/10.18452/15508.
Повний текст джерелаIn absence of the Standard Model (SM) Higgs boson the interaction among the gauge bosons becomes strong at high energies and influences the couplings between them. Each trilinear and quartic gauge boson vertex is characterised by a set of couplings which are expected to deviate from their SM values already at energies lower than the energy scale of the New Physics (NP). The precise measurement of gauge boson couplings can provide clues to the mechanism of the electroweak symmetry breaking and their anomalous values can be a sign of a NP effect beyond the SM. The sensitivity estimation of the measurement of charged trilinear gauge couplings (TGCs) at the Photon Collider based on TESLA parameters has been studied. The considered interactions are the single and double W boson production in electron-photon and photon-photon collisions (signals) at electron-electron centre-of-mass energy of 500 GeV. Signal and background events in the hadronic decay mode overlayed with the pileup, are simulated and analysed and a set of consecutive cuts is applied resulting in good signal efficiencies. The selected events are described with kinematical variables sensitive to TGCs. A new method has been applied to fit event angular distributions in the presence of anomalous TGCs expanding the dependence of the differential cross-section up to quadratic term in the TGCs. In the fit this expression is used to reweight the SM multi-dimensional binned distributions dependent on TGCs where also the uncertainty on the total normalisation is taken into account. Some sources of systematic errors are considered, as the beam energy, the W boson mass and the polarisation measurement. The estimated precisions of the TGC measurements at a photon collider are about one to two orders of magnitude higher than at LEP and Tevatron providing a measurement highly sensitive to the physics beyond the Standard Model. The optimisation of the forward region of the detector brings the amount of the low-energy background to the manageable level providing a clean environment for the TGC measurements at a photon collider with estimated precisions.
Mengarelli, Alberto <1981>. "Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings with ATLAS." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5196/1/Mengarelli_Alberto.pdf.
Повний текст джерелаMengarelli, Alberto <1981>. "Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings with ATLAS." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5196/.
Повний текст джерелаBell, Paul James. "Constraints on anomalous quartic gauge boson couplings at OPAL and the system test of the ATLAS barrel SCT." Thesis, University of Bristol, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416709.
Повний текст джерелаEdwards, Nicholas Charles. "Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings with the ATLAS detector." Thesis, University of Glasgow, 2013. http://theses.gla.ac.uk/4478/.
Повний текст джерелаMachin, D. "The global calorimeter trigger for CMS and a study of sensitivity limits in neural triple gauge boson vertices." Thesis, University of Bristol, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419681.
Повний текст джерелаJeanty, Laura Elizabeth. "Measurement of the WZ Production Cross Section in Proton-Proton Collision at \(\sqrt s = 7 TeV\) and Limits on Anomalous Triple Gauge Couplings with the ATLAS Detector." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:11023.
Повний текст джерелаPhysics
Shrestha, Shruti. "A measurement of Z(vv̄)[photon] cross section and limits on anomalous triple gauge couplings at [square root of]s = 7 TeV using CMS." Diss., Kansas State University, 2013. http://hdl.handle.net/2097/15316.
Повний текст джерелаDepartment of Physics
Yurii Maravin
In this thesis, the first measurement of Z(vv̄)[photon] cross section in pp collisions at [square root of]s = 7 TeV has been done using data collected by the CMS detector. The measured cross section is 21.3 ± 4.2 (stat.) ± 4.3 (syst.) ± 0.5 (lumi.) fb. This measurement is based on the observations of events with missing transverse energy in excess of 130 GeV and photon in the rapidity range [eta] < 1.44 of transverse momentum in excess of 145 GeV in a data sample corresponding to an integrated luminosity of 5 fb⁻¹. This measured cross section is in good agreement with the theoretical prediction of 21.9 ± 1.1 fb from BAUR. Further, neutral triple gauge couplings involving Z bosons and photons have been studied. No evidence for the presence of such couplings is observed and is in agreement with the predictions of the standard model. We set the most stringent limits to date on these triple gauge couplings.
Moreno-Lopez, Deywis [Verfasser]. "Measurement of the ZZ production cross section and limits to the anomalous triple gauge couplings with forward electrons with the ATLAS detector / Deywis Moreno-Lopez." Mainz : Universitätsbibliothek Mainz, 2015. http://d-nb.info/1070829056/34.
Повний текст джерелаKagan, Michael Aaron. "Measurement of the \(W^{\pm}Z\) Production Cross Section and Limits on Anomalous Triple Gauge Couplings at \(\sqrt s = 7 TeV\) using the ATLAS detector." Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10380.
Повний текст джерелаPhysics
Gumpert, Christian. "Measurement of Electroweak Gauge Boson Scattering in the Channel pp → W ± W ± jj with the ATLAS Detector at the Large Hadron Collider." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-162847.
Повний текст джерелаKaneti, Steven. "A measurement of the ZZ --> l⁻l⁺ vv̄ cross section at 8 TeV and limits on anomalous neutral triple gauge couplings with the ATLAS detector." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709405.
Повний текст джерелаBecker, Maurice [Verfasser]. "Measurement of ZZ production and search for anomalous neutral triple gauge couplings in pp collisions at [square root]s = 13 TeV with the ATLAS experiment / Maurice Becker." Mainz : Universitätsbibliothek Mainz, 2018. http://d-nb.info/116591400X/34.
Повний текст джерелаDobbs, Matthew. "Probing the Three Gauge-boson Couplings in 14 TeV Proton-Proton Collisions." Thesis, 2002. http://hdl.handle.net/1828/4581.
Повний текст джерелаGraduate
0798
Nagel, Felix [Verfasser]. "New aspects of gauge boson couplings and the Higgs sector / presented by Felix Nagel." 2004. http://d-nb.info/972053832/34.
Повний текст джерелаVeverka, Jan. "Studies of Zγ Production and Constraints on Anomalous Triple Gauge Couplings in pp Collisions at √s = 7 TeV". Thesis, 2013. https://thesis.library.caltech.edu/7770/13/main_r413_optimized.pdf.
Повний текст джерелаIn this thesis, we test the electroweak sector of the Standard Model of particle physics through the measurements of the cross section of the simultaneous production of the neutral weak boson Z and photon γ, and the limits on the anomalous Zγγ and ZZγ triple gauge couplings h3 and h4 with the Z decaying to leptons (electrons and muons). We analyze events collected in proton-proton collisions at center of mass energy of sqrt(s) = 7 TeV corresponding to an integrated luminosity of 5.0 inverse femtobarn. The analyzed events were recorded by the Compact Muon Solenoid detector at the Large Hadron Collider in 2011.
The production cross section has been measured for hard photons with transverse momentum greater than 15 GeV that are separated from the the final state leptons in the eta-phi plane by Delta R greater than 0.7, whose sum of the transverse energy of hadrons over the transverse energy of the photon in a cone around the photon with Delta R less than 0.3 is less than 0.5, and with the invariant mass of the dilepton system greater than 50 GeV. The measured cross section value is 5.33 +/- 0.08 (stat.) +/- 0.25 (syst.) +/- 0.12 (lumi.) picobarn. This is compatible with the Standard Model prediction that includes next-to-leading-order QCD contributions: 5.45 +/- 0.27 picobarn.
The measured 95 % confidence-level upper limits on the absolute values of the anomalous couplings h3 and h4 are 0.01 and 8.8E-5 for the Zγγ interactions, and, 8.6E-3 and 8.0E-5 for the ZZγ interactions. These values are also compatible with the Standard Model where they vanish in the tree-level approximation. They extend the sensitivity of the 2012 results from the ATLAS collaboration based on 1.02 inverse femtobarn of data by a factor of 2.4 to 3.1.
Deng, Jianrong. "Measurement of Z +γ Production and Search for Anomalous Triple Gauge Couplings in Proton-antiproton Collisions at √S = 1.96 Tev". Diss., 2008. http://hdl.handle.net/10161/623.
Повний текст джерелаDissertation
Deng, Jianrong. "Measurement of Z + [gamma] Production and Search for Anomalous Triple Gauge Couplings in Proton-antiproton Collisions at [radical symbol]S = 1.96 Tev." Diss., 2008. http://hdl.handle.net/10161/623.
Повний текст джерелаGumpert, Christian. "Measurement of Electroweak Gauge Boson Scattering in the Channel pp → W ± W ± jj with the ATLAS Detector at the Large Hadron Collider." Doctoral thesis, 2014. https://tud.qucosa.de/id/qucosa%3A28577.
Повний текст джерела