2011/07/09 by S. Chatrchyan, CMS Collaboration, V. Khachatryan +98
Physics and Astronomy · #Context (archaeology) #Electroweak interaction #Electroweak scale #Excited state #Fermion #High-Energy Particle Collisions Research #Lepton #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.1016/j.physletb.2011.09.021
published as Physics Letters B 704 (2011) 143-162
arxiv created 2011/07/09 · openalex publication_date 2011/09/11 · arxiv updated 2015/03/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
A search for excited leptons is carried out with the CMS detector at the LHC, using 36 pb -1 of pp collision data recorded at s = 7 TeV. The search is performed for associated production of a lepton and an oppositely charged excited lepton pp * , followed by the decay * , resulting in the final state, where = e, . No excess of events above the standard model expectation is observed. Interpreting the findings in the context of * production through four-fermion contact interactions and subsequent decay via electroweak processes, first upper limits are reported for * production at this collision energy.