From a sample of 152,000 tau decays collected by the ALEPH detector at LEP an upper limit of 24 MeV at 95% CL on the tau neutrino mass has been determined. The limit is obtained using a two dimensional likelihood fit of the visible energy and the invariant mass distribution of 25 tau --> 5 pi(pi(0)) nu(tau) events.

An upper limit for the τ neutrino mass from τ → 5π(π0)ντ decay / Buskulic, D., Casper, D., de Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J.-P., Minard, M.-N., Odier, P., Pietrzyk, B., Ariztizabal, F., Chmeissani, M., Crespo, J.M., Efthymiopoulos, I., Fernandez, E., Fernandez-Bosman, M., Gaitan, V., Garrido, Ll., Martinez, M., Orteu, S., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 349:4(1995), pp. 585-596. [10.1016/0370-2693(95)00248-J]

An upper limit for the τ neutrino mass from τ → 5π(π0)ντ decay

Creanza, D.;Iaselli, G.;Maggi, G.;
1995

Abstract

From a sample of 152,000 tau decays collected by the ALEPH detector at LEP an upper limit of 24 MeV at 95% CL on the tau neutrino mass has been determined. The limit is obtained using a two dimensional likelihood fit of the visible energy and the invariant mass distribution of 25 tau --> 5 pi(pi(0)) nu(tau) events.
1995
An upper limit for the τ neutrino mass from τ → 5π(π0)ντ decay / Buskulic, D., Casper, D., de Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J.-P., Minard, M.-N., Odier, P., Pietrzyk, B., Ariztizabal, F., Chmeissani, M., Crespo, J.M., Efthymiopoulos, I., Fernandez, E., Fernandez-Bosman, M., Gaitan, V., Garrido, Ll., Martinez, M., Orteu, S., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 349:4(1995), pp. 585-596. [10.1016/0370-2693(95)00248-J]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/4146
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