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

Journal article

The ATLAS detector is used to search for excited leptons in the electromagnetic radiative decay channel *→γ. 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 2.05fb-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 m *. In the special case where Λ=m *, excited electron and muon masses below 1.87 TeV and 1.75 TeV are excluded at 95% C.L., respectively. © 2012 CERN.

Authors: Aad, G; Abbott, B; Abdallah, J; Abdelalim, A; Abdesselam, A

• Publication status: Published
• Journal: Physical Review D
• Volume: 85
• Issue: 7
• Publication date: 2012-04-27
• DOI: 10.1103/PhysRevD.85.072003
• EISSN: 1550-2368
• ISSN: 1550-7998
• Language: English