%0 Journal Article
%T Search for type-III seesaw heavy leptons in pp collisions at root s=8 TeV with the ATLAS detector
%A ATLAS Collaboration (Aad, G. et al
%A Alvarez Piqueras, D.
%A Cabrera Urban, S.
%A Castillo Gimenez, V.
%A Costa, M. J.
%A Fernandez Martinez, P.
%A Ferrer, A.
%A Fiorini, L.
%A Fuster, J.
%A Garcia, C.
%A Garcia Navarro, J. E.
%A Gonzalez de la Hoz, S.
%A Hernandez Jimenez, Y.
%A Higon-Rodriguez, E.
%A Irles Quiles, A.
%A Jimenez Pena, J.
%A Kaci, M.
%A King, M.
%A Lacasta, C.
%A Lacuesta, V. R.
%A Marti-Garcia, S.
%A Mitsou, V. A.
%A Moles-Valls, R.
%A Oliver Garcia, E.
%A Pedraza Lopez, S.
%A Perez Garcia-Estañ, M. T.
%A Romero Adam, E.
%A Ros, E.
%A Salt, J.
%A Sanchez Martinez, V.
%A Soldevila, U.
%A Sanchez, J.
%A Torro Pastor, E.
%A Valero, A.
%A Valladolid Gallego, E.
%A Valls Ferrer, J. A.
%A Vos, M.
%J Physical Review D
%D 2015
%V 92
%N 3
%I Amer Physical Soc
%@ 1550-7998
%G English
%F ATLASCollaborationAad_etal2015
%O WOS:000358935400001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2321), last updated on Tue, 08 Sep 2015 17:50:52 +0000
%X A search for the pair production of heavy leptons (N-0, L-+/-) predicted by the type-III seesaw theory formulated to explain the origin of small neutrino masses is presented. The decay channels N-0 -> W(+/-)l(+/-) (l = e, mu, tau) and L-+/- -> W(+/-)v (v = v(e), v(mu), v(tau)) are considered. The analysis is performed using the final state that contains two leptons (electrons or muons), two jets from a hadronically decaying W boson and large missing transverse momentum. The data used in the measurement correspond to an integrated luminosity of 20.3 fb(-1) of pp collisions at root s = 8 TeV collected by the ATLAS detector at the LHC. No evidence of heavy lepton pair production is observed. Heavy leptons with masses below 325-540 GeV are excluded at the 95% confidence level, depending on the theoretical scenario considered.
%R 10.1103/PhysRevD.92.032001
%U http://arxiv.org/abs/1506.01839
%U https://doi.org/10.1103/PhysRevD.92.032001
%P 032001-20pp