Search for type-III seesaw heavy leptons in pp collisions at s =8 TeV with the ATLAS detector
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 co...
Guardado en:
| Autor principal: | |
|---|---|
| Formato: | JOUR |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_15507998_v92_n3_p_Aad |
| Aporte de: |
| id |
todo:paper_15507998_v92_n3_p_Aad |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_15507998_v92_n3_p_Aad2023-10-03T16:25:14Z Search for type-III seesaw heavy leptons in pp collisions at s =8 TeV with the ATLAS detector Aad, G. 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. © 2015 CERN. © 2015 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the »http://creativecommons.org/licenses/by/3.0/» Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15507998_v92_n3_p_Aad |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
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. © 2015 CERN. © 2015 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the »http://creativecommons.org/licenses/by/3.0/» Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. |
| format |
JOUR |
| author |
Aad, G. |
| spellingShingle |
Aad, G. Search for type-III seesaw heavy leptons in pp collisions at s =8 TeV with the ATLAS detector |
| author_facet |
Aad, G. |
| author_sort |
Aad, G. |
| title |
Search for type-III seesaw heavy leptons in pp collisions at s =8 TeV with the ATLAS detector |
| title_short |
Search for type-III seesaw heavy leptons in pp collisions at s =8 TeV with the ATLAS detector |
| title_full |
Search for type-III seesaw heavy leptons in pp collisions at s =8 TeV with the ATLAS detector |
| title_fullStr |
Search for type-III seesaw heavy leptons in pp collisions at s =8 TeV with the ATLAS detector |
| title_full_unstemmed |
Search for type-III seesaw heavy leptons in pp collisions at s =8 TeV with the ATLAS detector |
| title_sort |
search for type-iii seesaw heavy leptons in pp collisions at s =8 tev with the atlas detector |
| url |
http://hdl.handle.net/20.500.12110/paper_15507998_v92_n3_p_Aad |
| work_keys_str_mv |
AT aadg searchfortypeiiiseesawheavyleptonsinppcollisionsats8tevwiththeatlasdetector |
| _version_ |
1807316297054158848 |