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

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→eτH→eτH\rightarrow e\tau , H→μτH→μτH\rightarrow \mu \tau , and Z→μτZ→μτZ\rightarrow \mu \tau . The searches are based on the...

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Main Authors: Aad, Georges (Author) , Anders, Christoph (Author) , Andrei, George Victor (Author) , Baas, Alessandra Edda (Author) , Brandt, Oleg (Author) , Djuvsland, Julia Isabell (Author) , Dunford, Monica (Author) , Ferreira de Lima, Danilo Enoque (Author) , Geisler, Manuel Patrice (Author) , Giulini, Maddalena (Author) , Hanke, Paul (Author) , Jongmanns, Jan (Author) , Kluge, Eike-Erik (Author) , Kolb, Mathis (Author) , Kugel, Andreas (Author) , Lang, Valerie (Author) , Lisovyi, Mykhailo (Author) , Meyer zu Theenhausen, Hanno (Author) , Narrias Villar, Daniel Isaac (Author) , S̜ahinsoy, Merve (Author) , Schätzel, Sebastian (Author) , Scharf, Veit (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Sosa Corral, David E. (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Suchek, Stanislav (Author) , Wessels, Martin (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 4 February 2017
In: The European physical journal. C, Particles and fields
Year: 2017, Volume: 77, Issue: 2
ISSN:1434-6052
DOI:10.1140/epjc/s10052-017-4624-0
Online Access:Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1140/epjc/s10052-017-4624-0
Verlag, kostenfrei, Volltext: https://link.springer.com/article/10.1140/epjc/s10052-017-4624-0
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Author Notes:ATLAS collaboration*
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Summary: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→eτH→eτH\rightarrow e\tau , H→μτH→μτH\rightarrow \mu \tau , and Z→μτZ→μτZ\rightarrow \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−1fb−1\mathrm{fb}^{-1} at a centre-of-mass energy of s√=8s=8\sqrt{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→eτ)<1.04%(H→eτ)<1.04%(H\rightarrow e\tau )<1.04\%, Br(H→μτ)<1.43%(H→μτ)<1.43%(H\rightarrow \mu \tau )<1.43\%, and Br(Z→μτ)<1.69×10−5(Z→μτ)<1.69×10−5(Z\rightarrow \mu \tau )<1.69\times 10^{-5}.
Item Description:ATLAS Collaboration: G. Aad, C.F. Anders, V. Andrei, A.E. Baas, O. Brandt, J.I. Djuvsland, M. Dunford, D.E. Ferreira de Lima, M.P. Geisler, M. Giulini, P. Hanke, J. Jongmanns, E.-E. Kluge, M. Kolb, A. Kugel, V.S. Lang, M. Lisovyi, H. Meyer Zu Theenhausen, D.I. Narrias Villar, M. Sahinsoy, S. Schaetzel, V. Scharf, A. Schoening, H.-C. Schultz-Coulon, D. Sosa, R. Stamen, P. Starovoitov, S. Suchek, M. Wessels [und weitere]
Gesehen am 09.04.2018
Physical Description:Online Resource
ISSN:1434-6052
DOI:10.1140/epjc/s10052-017-4624-0

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