We searched for excited electrons and muons from Z 0 decay in the channels ee→eeγ, ee→eeγγ, ee→(e)eγ, ee→μμγ, ee→μμγγ, using the L3 detector at LEP. The lower mass limit for e* is 45.0 GeV and for μ* 45.3 GeV. The upper limits of ℓℓ*Z 0 and ℓℓ*γ couplings at 95% CL have been determined up to m ℓ* close to the Z 0 mass.
Mass limits for excited electrons and muons from Z 0 decay / Aloisio, Alberto; Alviggi, Mariagrazia; Chiefari, Giovanni; Merola, Leonardo; Napolitano, Marco; Paternoster, Giovanni; Patricelli, Sergio; Sciacca, Crisostomo. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 247:(1990), pp. 177-184.
Mass limits for excited electrons and muons from Z 0 decay
ALOISIO, ALBERTO;ALVIGGI, MARIAGRAZIA;CHIEFARI, GIOVANNI;MEROLA, LEONARDO;NAPOLITANO, MARCO;PATERNOSTER, GIOVANNI;PATRICELLI, SERGIO;SCIACCA, CRISOSTOMO
1990
Abstract
We searched for excited electrons and muons from Z 0 decay in the channels ee→eeγ, ee→eeγγ, ee→(e)eγ, ee→μμγ, ee→μμγγ, using the L3 detector at LEP. The lower mass limit for e* is 45.0 GeV and for μ* 45.3 GeV. The upper limits of ℓℓ*Z 0 and ℓℓ*γ couplings at 95% CL have been determined up to m ℓ* close to the Z 0 mass.File in questo prodotto:
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