Search for the standard model Higgs boson produced in association with a Z boson with the CMS detector at the LHC
| Autor: | Bortignon, Pierluigi |
|---|---|
| Přispěvatelé: | Dissertori, Günther, Grab, Christoph |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
HOCHENERGIEPHYSIK (TEILCHENPHYSIK)
VECTOR BOSONS (PARTICLE PHYSICS) FEHLERRECHNUNG + AUSWERTUNG + INTERPRETATION (PHYSIK) DATA EVALUATION + ERROR CALCULATION (PHYSICS) HIGGS-TEILCHEN (TEILCHENPHYSIK) HIGGS PARTICLE (PARTICLE PHYSICS) COLLIDERS + SUPERCOLLIDERS (PARTICLE ACCELERATORS) HIGH-ENERGY PHYSICS (PARTICLE PHYSICS) COLLIDER + SUPERCOLLIDER (TEILCHENBESCHLEUNIGER) VEKTORBOSONEN (TEILCHENPHYSIK) Physics High Energy Physics::Phenomenology High Energy Physics::Experiment ddc:530 Particle Physics - Experiment |
| Popis: | A search for the Standard Model Higgs boson produced in association with a Z boson and decaying into bottom quark pairs at the LHC with the CMS detector is presented. The Z boson is required to decay into leptons. The search is performed using 5 fb$^{-1}$ of data collected at the centre of mass energy of 7TeV and 18.9fb$^{-1}$ of data collected at 8 TeV. An overall excess of events with respect to the background only hypothesis is observed in the Higgs boson mass range between 110 and 135 GeV. The local p-value of this excess is 0.5 (0.008) for a Higgs boson with a mass of 110 (135) GeV. The signal strength of this excess, relative to the standard model cross section, for a Higgs boson hypothesis of 125 GeV is 0.8±1.0. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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