Search for type-III seesaw heavy leptons in <math display='inline'><mi>p</mi><mi>p</mi></math> collisions at <math display='inline'><mrow><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>8</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></mrow></math> with the ATLAS detector [electronic resource]
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| Online Access: |
Online Access (via OSTI) |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. High Energy Physics Division ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2015.
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| Abstract: | A search for the pair production of heavy leptons (N0,L±) predicted by the type-III seesaw theory formulated to explain the origin of small neutrino masses is presented. The decay channels N0→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. |
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| Item Description: | Published through SciTech Connect. 08/01/2015. "ark:/13030/qt2hc771w7" Physical Review. D, Particles, Fields, Gravitation and Cosmology 92 3 ISSN 1550-7998; PRVDAQ AM. Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M.; AbouZeid, O.; Abramowicz, H.; Abreu, H.; Abreu, R.; Abulaiti, Y.; Acharya, B.; Adamczyk, L.; Adams, D.; Adelman, J.; Adomeit, S.; Adye, T.; Affolder, A.; Agatonovic-Jovin, T.; Aguilar-Saavedra, J.; Ahlen, S.; Ahmadov, F.; Aielli, G.; Akerstedt, H.; Åkesson, T.; et al. |