High mass photon pairs in ℓ+ℓ−γγ events at LEP
From the analysis of the reactions e + e- → ℓ+ℓ−(nγ) (ℓ = e,μ,τ) we observe four events, e+e−γγ and three μ+μ−γγ, with the invariant mass of the photon pairs close to 60 GeV. These events were selected from a data sample collected in the L3 detector corresponding to 950000 produced Z°'s. More data a...
| Autores: | ; |
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| Tipo de documento: | Artigo |
| Estado: | Published version |
| Data de publicação: | 1992 |
| País: | Argentina |
| Recursos: | UNLP |
| Repositório: | SEDICI (UNLP) |
| Idioma: | Inglês |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/73191 |
| Acesso em linha: | http://sedici.unlp.edu.ar/handle/10915/73191 |
| Nível de acesso: | Acesso aberto |
| Palavra-chave: | Ciencias Exactas Física photon pairs 60 GeV L3 detector |
| Resumo: | From the analysis of the reactions e + e- → ℓ+ℓ−(nγ) (ℓ = e,μ,τ) we observe four events, e+e−γγ and three μ+μ−γγ, with the invariant mass of the photon pairs close to 60 GeV. These events were selected from a data sample collected in the L3 detector corresponding to 950000 produced Z°'s. More data are necessary to ascertain the origin of these events. |
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