We have searched for the excited electron neutrino produced from Z 0 decays in the channel e +e -→vv* using the L3 detector at LEP. The decays v*→eW and v*→vγ have been investigated. We have determined an upper limit on the Zvv* coupling as a function of m v* up to the Z 0 mass.
Search for excited neutrinos from Z 0 decays / A. O., Aguilar Benitez; Alviggi, Mariagrazia; Aloisio, Alberto; Chiefari, Giovanni; Napolitano, Marco; Merola, Leonardo; Paternoster, Giovanni; Patricelli, Sergio; Sciacca, Crisostomo. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 252:(1990), pp. 525-532.
Search for excited neutrinos from Z 0 decays
ALVIGGI, MARIAGRAZIA;ALOISIO, ALBERTO;CHIEFARI, GIOVANNI;NAPOLITANO, MARCO;MEROLA, LEONARDO;PATERNOSTER, GIOVANNI;PATRICELLI, SERGIO;SCIACCA, CRISOSTOMO
1990
Abstract
We have searched for the excited electron neutrino produced from Z 0 decays in the channel e +e -→vv* using the L3 detector at LEP. The decays v*→eW and v*→vγ have been investigated. We have determined an upper limit on the Zvv* coupling as a function of m v* up to the Z 0 mass.File in questo prodotto:
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