Search for excited electrons and muons in √s=8 TeV proton-proton collisions with the ATLAS detector
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, Journal Article
Aad, G; Abajyan, T; Abbott, B; Abdallah, J; Abdel Khalek, S; Abdinov, O; Aben, R; Abi, B; Abolins, M; Abouzeid, OS; Abramowicz, H; Abreu, H ...
Published in: New Journal of Physics
September 1, 2013
The ATLAS detector at the Large Hadron Collider is used to search for excited electrons and excited muons in the channel pp → ℓℓ* → ℓℓγ, assuming that excited leptons are produced via contact interactions. The analysis is based on 13 fb-1 of pp collisions at a centre-of-mass energy of 8 TeV. No evidence for excited leptons is found, and a limit is set at the 95% credibility level on the cross section times branching ratio as a function of the excited-lepton mass mℓ*. For mℓ* 0.8 TeV, the respective upper limits on σB(ℓ* → ℓγ) are 0.75 and 0.90 fb for the e* and μ* searches. Limits on σB are converted into lower bounds on the compositeness scale Λ. In the special case where Λ = m ℓ*, excited-electron and excited-muon masses below 2.2 TeV are excluded. © CERN 2013.
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Published In
New Journal of Physics
DOI
ISSN
1367-2630
Publication Date
September 1, 2013
Volume
15
Related Subject Headings
- Fluids & Plasmas
- 51 Physical sciences
- 02 Physical Sciences
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Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., … Argyropoulos, S. (2013). Search for excited electrons and muons in √s=8 TeV proton-proton collisions with the ATLAS detector. New Journal of Physics, 15. https://doi.org/10.1088/1367-2630/15/9/093011
Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, et al. “Search for excited electrons and muons in √s=8 TeV proton-proton collisions with the ATLAS detector.” New Journal of Physics 15 (September 1, 2013). https://doi.org/10.1088/1367-2630/15/9/093011.
Aad G, Abajyan T, Abbott B, Abdallah J, Abdel Khalek S, Abdinov O, et al. Search for excited electrons and muons in √s=8 TeV proton-proton collisions with the ATLAS detector. New Journal of Physics. 2013 Sep 1;15.
Aad, G., et al. “Search for excited electrons and muons in √s=8 TeV proton-proton collisions with the ATLAS detector.” New Journal of Physics, vol. 15, Sept. 2013. Scopus, doi:10.1088/1367-2630/15/9/093011.
Aad G, Abajyan T, Abbott B, Abdallah J, Abdel Khalek S, Abdinov O, Aben R, Abi B, Abolins M, Abouzeid OS, Abramowicz H, Abreu H, Abulaiti Y, Acharya BS, Adamczyk L, Adams DL, Addy TN, Adelman J, Adomeit S, Adye T, Aefsky S, Agatonovic-Jovin T, Aguilar-Saavedra JA, Agustoni M, Ahlen SP, Ahmad A, Ahmadov F, Ahsan M, Aielli G, Åkesson TPA, Akimoto G, Akimov AV, Alam MA, Albert J, Albrand S, Alconada Verzini MJ, Aleksa M, Aleksandrov IN, Alessandria F, Alexa C, Alexander G, Alexandre G, Alexopoulos T, Alhroob M, Aliev M, Alimonti G, Alio L, Alison J, Allbrooke BMM, Allison LJ, Allport PP, Allwood-Spiers SE, Almond J, Aloisio A, Alon R, Alonso A, Alonso F, Altheimer A, Alvarez Gonzalez B, Alviggi MG, Amako K, Amaral Coutinho Y, Amelung C, Ammosov VV, Amor Dos Santos SP, Amorim A, Amoroso S, Amram N, Anastopoulos C, Ancu LS, Andari N, Andeen T, Anders CF, Anders G, Anderson KJ, Andreazza A, Andrei V, Anduaga XS, Angelidakis S, Anger P, Angerami A, Anghinolfi F, Anisenkov AV, Anjos N, Annovi A, Antonaki A, Antonelli M, Antonov A, Antos J, Anulli F, Aoki M, Aperio Bella L, Apolle R, Arabidze G, Aracena I, Arai Y, Arce ATH, Arfaoui S, Arguin JF, Argyropoulos S. Search for excited electrons and muons in √s=8 TeV proton-proton collisions with the ATLAS detector. New Journal of Physics. 2013 Sep 1;15.
Published In
New Journal of Physics
DOI
ISSN
1367-2630
Publication Date
September 1, 2013
Volume
15
Related Subject Headings
- Fluids & Plasmas
- 51 Physical sciences
- 02 Physical Sciences