Search for exclusive Higgs and Z boson decays to ϕγ and ργ with the ATLAS detector
A search for the exclusive decays of the Higgs and Z bosons to a φ or ρ meson and a photon is performed with a pp collision data sample corresponding to an integrated luminosity of up to 35.6 fb−1 collected at √ s = 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. These decays have...
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Autores principales: | , , , , , , , |
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Formato: | Articulo |
Lenguaje: | Inglés |
Publicado: |
2018
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Materias: | |
Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/126587 |
Aporte de: |
Sumario: | A search for the exclusive decays of the Higgs and Z bosons to a φ or ρ meson and a photon is performed with a pp collision data sample corresponding to an integrated luminosity of up to 35.6 fb−1 collected at √ s = 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. These decays have been suggested as a probe of the Higgs boson couplings to light quarks. No significant excess of events is observed above the background, as expected from the Standard Model. Upper limits at 95% confidence level were obtained on the branching fractions of the Higgs boson decays to φγ and ργ of 4.8 × 10−4 and 8.8 × 10−4 , respectively. The corresponding 95% confidence level upper limits for the Z boson decays are 0.9 × 10−6 and 25 × 10−6 for φγ and ργ, respectively. |
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