TY - SER AU - Aad,G. AU - Abdallah,J. AU - Chelkov,G.A. AU - Abbott,B. ED - Томский государственный университет TI - Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at √s = 8 TeV with the ATLAS detector KW - ATLAS, детектор KW - Большой адронный коллайдер KW - лептоны KW - столкновение частиц KW - бозоны KW - статьи в журналах N1 - Библиогр.: 54 назв N2 - A search for heavy leptons decaying to a Z boson and an electron or a muon is presented. The search is based on pp collision data taken at s√=8 TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb−1. Three high-transverse-momentum electrons or muons are selected, with two of them required to be consistent with originating from a Z boson decay. No significant excess above Standard Model background predictions is observed, and 95% confidence level limits on the production cross section of high-mass trilepton resonances are derived. The results are interpreted in the context of vector-like lepton and type-III seesaw models. For the vector-like lepton model, most heavy lepton mass values in the range 114-176 GeV are excluded. For the type-III seesaw model, most mass values in the range 100-468 GeV are excluded UR - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000534106 ER -