Scientific article

English

Search for excited neutrinos from Z⁰decays

ContributorsL3 Collab.

CollaboratorsBourquin, Maurice; Duchesneau, Dominique Robert; Extermann, Pierre; Field, John; Forconi, Gilles Raymond; Goujon, Didier; Lalieu, Vincent Marc; Perrier, Jacques; Produit, Nicolas

; Wenninger, Joerg Horst

Published inPhysics letters. B, vol. 252, no. 3, p. 525-532

Publication date1990

Abstract

We have searched for the excited electron neutrino produced from Z 0 decays in the channel e + e − →νν ∗ using the L3 detector at LEP. The decays ν ∗ →eW and ν ∗ →νγ have been investigated. We have determined an upper limit on the Zνν ∗ coupling as a function of m ν ∗ up to the Z 0 mass.

Keywords

Electron positron: colliding beams
Colliding beams: electron positron
Electron positron: annihilation
Annihilation: electron positron
Z0: electroproduction
Electroproduction: Z0
Z0: leptonic decay
Leptonic decay: Z0
Neutrino/e: excited state
Excited state: decay
Decay: excited state
Coupling: (Z0 neutrino/e neutrino/e)
(Z0 neutrino/e neutrino/e): coupling
Dependence: mass
Mass dependence
L3
Experimental results
CERN LEP Stor
Electron positron --> neutrino/e neutrino/e
Neutrino/e --> W electron
Neutrino/e --> neutrino/e photon
Approx. 91 GeV-cms

Affiliation entities

Faculté des sciences / Département d'astronomie

Citation (ISO format)

L3 Collab. Search for excited neutrinos from Z⁰decays. In: Physics letters. B, 1990, vol. 252, n° 3, p. 525–532. doi: 10.1016/0370-2693(90)90582-q

Article (Published version)

Identifiers

PID : unige:187176
DOI : 10.1016/0370-2693(90)90582-q

Additional URL for this publicationhttps://linkinghub.elsevier.com/retrieve/pii/037026939090582Q

Journal ISSN0370-2693

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