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Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at s√=8

Publication ,  Journal Article
The ATLAS collaboration; Aad, G; Abbott, B; Abdallah, J; Abdinov, O; Aben, R; Abolins, M; AbouZeid, OS; Abramowicz, H; Abreu, H; Abreu, R ...
Published in: Journal of High Energy Physics
September 26, 2015
Published version (DOI)

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 (Formula presented.) = 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.

Duke Scholars

Alfred T. Goshaw
Author Alfred T. Goshaw Physics
Ashutosh V. Kotwal
Author Ashutosh V. Kotwal Physics
Mark C. Kruse
Author Mark C. Kruse Physics

Published In

Journal of High Energy Physics

DOI

10.1007/JHEP09(2015)108

EISSN

1029-8479

Publication Date

September 26, 2015

Volume

2015

Issue

9

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics
 

Citation

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The ATLAS collaboration, Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Aben, R., … Arslan, O. (2015). Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at s√=8. Journal of High Energy Physics, 2015(9). https://doi.org/10.1007/JHEP09(2015)108
The ATLAS collaboration, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, R. Aben, M. Abolins, et al. “Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at s√=8.” Journal of High Energy Physics 2015, no. 9 (September 26, 2015). https://doi.org/10.1007/JHEP09(2015)108.
The ATLAS collaboration, Aad G, Abbott B, Abdallah J, Abdinov O, Aben R, et al. Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at s√=8. Journal of High Energy Physics. 2015 Sep 26;2015(9).
The ATLAS collaboration, et al. “Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at s√=8.” Journal of High Energy Physics, vol. 2015, no. 9, Sept. 2015. Scopus, doi:10.1007/JHEP09(2015)108.
The ATLAS collaboration, Aad G, Abbott B, Abdallah J, Abdinov O, Aben R, Abolins M, AbouZeid OS, Abramowicz H, Abreu H, Abreu R, Abulaiti Y, Acharya BS, Adamczyk L, Adams DL, Adelman J, Adomeit S, Adye T, Affolder AA, Agatonovic-Jovin T, Aguilar-Saavedra JA, Ahlen SP, Ahmadov F, Aielli G, Akerstedt H, Åkesson TPA, Akimoto G, Akimov AV, Alberghi GL, Albert J, Albrand S, Alconada Verzini MJ, Aleksa M, Aleksandrov IN, Alexa C, Alexander G, Alexopoulos T, Alhroob M, Alimonti G, Alio L, Alison J, Alkire SP, Allbrooke BMM, Allport PP, Aloisio A, Alonso A, Alonso F, Alpigiani C, Altheimer A, Alvarez Gonzalez B, Álvarez Piqueras D, Alviggi MG, Amadio BT, Amako K, Amaral Coutinho Y, Amelung C, Amidei D, Amor Dos Santos SP, Amorim A, Amoroso S, Amram N, Amundsen G, Anastopoulos C, Ancu LS, Andari N, Andeen T, Anders CF, Anders G, Anders JK, Anderson KJ, Andreazza A, Andrei V, Angelidakis S, Angelozzi I, Anger P, Angerami A, Anghinolfi F, Anisenkov AV, Anjos N, Annovi A, Antonelli M, Antonov A, Antos J, Anulli F, Aoki M, Aperio Bella L, Arabidze G, Arai Y, Araque JP, Arce ATH, Arduh FA, Arguin JF, Argyropoulos S, Arik M, Armbruster AJ, Arnaez O, Arnal V, Arnold H, Arratia M, Arslan O. Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at s√=8. Journal of High Energy Physics. 2015 Sep 26;2015(9).
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Published In

Journal of High Energy Physics

DOI

10.1007/JHEP09(2015)108

EISSN

1029-8479

Publication Date

September 26, 2015

Volume

2015

Issue

9

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics