${\mathbf{Z}}(\nu \bar {\nu })\gamma $Measurement and Neutral aTGC Limits at 13 TeV with the ATLAS Detector
| Autor: | Olympia Dartsi |
|---|---|
| Přispěvatelé: | Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Particle physics
p p: scattering anomalous triple gauge boson coupling (aTGC) Photon Standard Model Atlas detector 13000 GeV-cms Physics beyond the Standard Model ZZγ couplings Z0: coupling coupling constant: upper limit transverse momentum 01 natural sciences 7. Clean energy 010309 optics 0103 physical sciences [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] coupling: (3gauge boson) coupling: anomaly Boson 010302 applied physics Physics photon: transverse energy Large Hadron Collider electroweak interaction 13 TeV ATLAS detector neutrino: pair production new physics: search for Electroweak interaction High Energy Physics::Phenomenology Z0: hadroproduction ATLAS Electronic Optical and Magnetic Materials photon: associated production Transverse plane Z0: invisible decay CERN LHC Coll electroweak High Energy Physics::Experiment gauge boson: coupling LHC Neutrino p p: colliding beams Zγγ couplings experimental results Zγ production |
| Zdroj: | Bull.Lebedev Phys.Inst. Bull.Lebedev Phys.Inst., 2020, 47 (10), pp.303-307. ⟨10.3103/S106833562010005X⟩ |
| DOI: | 10.3103/S106833562010005X⟩ |
| Popis: | International audience; The production of a Z boson in association with a high-energy photon (γ) in proton-proton collisions has been studied at the Large Hadron Collider (LHC). These studies have been used to test the electroweak sector of the Standard Model and to search for new physics effects, such as potential couplings of Z bosons to photons. The Zγ production with the Z boson decaying into neutrinos has been measured with data collected by the ATLAS detector during the 2015–2016 period at a center-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 36.1 fb$^{–1}$. Candidate Zγ events with invisible decays of the Z boson are selected by requiring significant transverse momentum $({{p}_{T}})$ of the neutrinos system in conjunction with a single isolated photon with large transverse energy (E$_{T}$). Evidence of anomalous triple gauge-boson couplings is sought in Zγ production with photon E$_{T}$ greater than 600 GeV. No excess is observed relative to the Standard Model expectation, and upper limits are set on the strength of ZZγ and Zγγ couplings. |
| Databáze: | OpenAIRE |
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