Excited neutrinos decaying into a neutrino and a photon are searched for in the ALEPH detector at LEP. No evidence is found for Z decay into v̄v∗ or v̄∗v∗ final states. Upper limits are derived on excited neutrino couplings up to excited neutrino masses close to the Z mass. Lower limits on the v∗ mass, independent of the v∗ decay modes, are deduced from the total Z width.

Search for excited neutrinos in Z decay / D. Decamp, B. Deschizeaux, C. Goy, J.-P. Lees, M.-N. Minard, R. Alemany, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, P. Mato, R. Miguel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, D. Creanza, et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 250:(1990), pp. 172-182. [10.1016/0370-2693(90)91174-A]

Search for excited neutrinos in Z decay

FOCARDI, ETTORE;
1990

Abstract

Excited neutrinos decaying into a neutrino and a photon are searched for in the ALEPH detector at LEP. No evidence is found for Z decay into v̄v∗ or v̄∗v∗ final states. Upper limits are derived on excited neutrino couplings up to excited neutrino masses close to the Z mass. Lower limits on the v∗ mass, independent of the v∗ decay modes, are deduced from the total Z width.
1990
250
172
182
D. Decamp;B. Deschizeaux;C. Goy;J.-P. Lees;M.-N. Minard;R. Alemany;J.M. Crespo;M. Delfino;E. Fernandez;V. Gaitan;Ll. Garrido;P. Mato;R. M...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/632090
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