Search for excited leptons in proton-proton collisions at s√=7 TeV with the ATLAS detector

UNSPECIFIED (2012) Search for excited leptons in proton-proton collisions at s√=7  TeV with the ATLAS detector. Physical Review D, 85 (7): 072003. ISSN 1550-7998

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The ATLAS detector is used to search for excited leptons in the electromagnetic radiative decay channel ℓ∗→ℓγ. Results are presented based on the analysis of pp collisions at a center-of-mass energy of 7 TeV corresponding to an integrated luminosity of 2.05  fb−1. No evidence for excited leptons is found, and limits are set on the compositeness scale Λ as a function of the excited lepton mass mℓ∗. In the special case where Λ=mℓ∗, excited electron and muon masses below 1.87 TeV and 1.75 TeV are excluded at 95% C.L., respectively.

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Journal Article
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Physical Review D
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Published by the American Physical Society under the terms of the 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. © 2012 CERN, for the ATLAS Collaboration
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02 Jan 2014 11:45
Last Modified:
14 Feb 2024 00:51