Direct search for neutrino mass and anomaly in the tritium beta-spectrum: Status of "Troitsk neutrino mass" experiment

Authors
Lobashev, VM Aseev, VN Belesev, AI Berlev, AI Geraskin, EV Golubev, AA Kazachenko, OV Kuznetsov, YE Ostroumov, RP Rivkis, LA Stern, BE Titov, NA Zadoroghny, CV Zakharov, YI
Citation
Vm. Lobashev et al., Direct search for neutrino mass and anomaly in the tritium beta-spectrum: Status of "Troitsk neutrino mass" experiment, NUCL PH B-P, 91, 2001, pp. 280-286
Citations number
9
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
ISSN journal
09205632 → ACNP
Volume
91
Year of publication
2001
Pages
280 - 286
Database
ISI
SICI code
0920-5632(200101)91:<280:DSFNMA>2.0.ZU;2-Z
Abstract
Results of the "Troitsk nu -mass" experiment on search for the neutrino res t mass in the tritium beta-decay are presented. New data on the time depend ence of the anomalous, bump-like structure at the end of the beta spectrum reported earlier are discussed. Possible systematics is considered in view of contradiction of "Troitsk nu-mass" observation with those of "Mainz neut rino" set-up. An upper limit for electron antineutrino rest mass remains at m(nu) < 2.5eV/c(2) at 95% C.L.