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W boson helicity measurement in tt̄ di-electron channel with the CMS detector at the LHC and the CMS outer tracker upgrade for the HL-LHC
This thesis presents a measurement of the W boson helicity fractions in the tt̄ di-electron final state. The top pair events are produced in proton-proton collisions at a center-of-mass energy of 8 TeV, collected by the CMS experiment at the Large Hadron Collider (LHC), corresponding to an integrate...
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| Lenguaje: | eng |
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2018
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| Acceso en línea: | http://cds.cern.ch/record/2319267 |