Search for excited leptons in Z0 decay

, ALEPH Collaboration (1990) Search for excited leptons in Z0 decay. Physics Letters B, 236 (4). pp. 501-510. ISSN 0370-2693

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We have looked for evidence of excited lepton production in Z0 decay observed in the ALEPH detector at LEP. We find no ℓℓγγ events and set new limits at 95% CL on ℓ∗ masses at 44.6, 44.6 and 41.2 GeV/c2 for respectively. Observed events in the ℓℓγ channels are consistent with radiative effects and we set limits for the first time on the coupling for ℓ∗ masses in the range up to 86 GeV/c2.

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Journal Article
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Physics Letters B
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02 May 2013 14:53
Last Modified:
21 Nov 2022 23:38