Direct searches for lepton flavour violation in decays of the Higgs and Z bosons with the ATLAS detector at the LHC are presented. The following three decays are considered: H -> e tau, H -> mu tau, and Z -> mu tau. The searches are based on the data sample of proton-proton collisions collected by the ATLAS detector corresponding to an integrated luminosity of 20.3 fb(-1) at a centre-of-mass energy of root s = 8 TeV. No significant excess is observed, and upper limits on the lepton-flavour-violating branching ratios are set at the 95\% confidence level: Br(H -> e tau) < 1.04\%, Br(H -> mu tau) < 1.43\%, and Br(Z -> mu tau) < 1.69 x 10(-5).

Search for lepton-flavour-violating decays of the Higgs and Z bosons with the ATLAS detector

Chiodini, G;Gorini, E;Primavera, M;Spagnolo, S;Ventura, A.
2017

Abstract

Direct searches for lepton flavour violation in decays of the Higgs and Z bosons with the ATLAS detector at the LHC are presented. The following three decays are considered: H -> e tau, H -> mu tau, and Z -> mu tau. The searches are based on the data sample of proton-proton collisions collected by the ATLAS detector corresponding to an integrated luminosity of 20.3 fb(-1) at a centre-of-mass energy of root s = 8 TeV. No significant excess is observed, and upper limits on the lepton-flavour-violating branching ratios are set at the 95\% confidence level: Br(H -> e tau) < 1.04\%, Br(H -> mu tau) < 1.43\%, and Br(Z -> mu tau) < 1.69 x 10(-5).
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11587/415738
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