Aad G, G and Abbott B, B and Abdallah J, J and Abdinov O, O and Aben R, R and Krasznahorkay, Attila and Nagai, Yoshikazu and Pásztor, Gabriella and Tóth, József (2015) Search for type-III Seesaw heavy leptons in pp collisions at√s=8 TeV with the ATLAS Detector. PHYSICAL REVIEW D, 92 (3). ISSN 2470-0010
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Abstract
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∓ (` = e, μ, τ ) and L± → W ±ν (ν = νe, νμ, ντ ) 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 √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.
Item Type: | Article |
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Subjects: | Q Science / természettudomány > QC Physics / fizika |
SWORD Depositor: | MTMT SWORD |
Depositing User: | MTMT SWORD |
Date Deposited: | 10 Nov 2023 14:57 |
Last Modified: | 10 Nov 2023 14:57 |
URI: | http://real.mtak.hu/id/eprint/179550 |
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