%0 Journal Article
%T Search for lepton-flavor-violating decays of the Z boson into a r lepton and a light lepton with the ATLAS detector
%A ATLAS Collaboration (Aaboud, M. et al
%A Alvarez Piqueras, D.
%A Bailey, A. J.
%A Barranco Navarro, L.
%A Cabrera Urban, S.
%A Castillo, F. L.
%A Castillo Gimenez, V.
%A Cerda Alberich, L.
%A Costa, M. J.
%A Escobar, C.
%A Estrada Pastor, O.
%A Ferrer, A.
%A Fiorini, L.
%A Fuster, J.
%A Garcia, C.
%A Garcia Navarro, J. E.
%A Gonzalez de la Hoz, S.
%A Higon-Rodriguez, E.
%A Jimenez Pena, J.
%A Lacasta, C.
%A Lozano Bahilo, J. J.
%A Madaffari, D.
%A Mamuzic, J.
%A Marti-Garcia, S.
%A Melini, D.
%A Miñano, M.
%A Mitsou, V. A.
%A Pedraza Lopez, S.
%A Rodriguez Bosca, S.
%A Rodriguez Rodriguez, D.
%A Salt, J.
%A Soldevila, U.
%A Sanchez, J.
%A Valero, A.
%A Valls Ferrer, J. A.
%A Vos, M.
%J Physical Review D
%D 2018
%V 98
%N 9
%I Amer Physical Soc
%@ 2470-0010
%G English
%F ATLASCollaborationAaboud_etal2018
%O WOS:000450140300002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3804), last updated on Thu, 29 Nov 2018 18:23:06 +0000
%X Direct searches for lepton flavor violation in decays of the Z boson with the ATLAS detector at the LHC are presented. Decays of the Z boson into an electron or muon and a hadronically decaying r lepton are considered. The searches are based on a data sample of proton-proton collisions collected by the ATLAS detector in 2015 and 2016, corresponding to an integrated luminosity of 36.1 fb(-1) at a center-of-mass energy of root s = 13 TeV. No statistically significant excess of events above the expected background is observed, and upper limits on the branching ratios of lepton-flavor-violating decays are set at the 95% confidence level: B(Z -> e tau) < 5.8 x 10(-5) and B(Z -> μtau) < 2.4 x 10(-5). This is the first limit on B(Z -> e tau) with ATLAS data. The upper limit on 13(Z -> μtau) is combined with a previous ATLAS result based on 20.3 fb(-1) of proton protoncollision data at a center-of-mass energy of root s = 8 TeV and the combined upper limit at 95% confidence level is B(Z -> μtau) < 1.3 x 10(-5).
%R 10.1103/PhysRevD.98.092010
%U http://arxiv.org/abs/1804.09568
%U https://doi.org/10.1103/PhysRevD.98.092010
%P 092010-31pp