An upper limit on electron antineutrino mass from Troitsk experiment
By V. Aseev, A. Belesev, A. Berlev, E. Geraskin, A. Golubev, N. Likhovid, V. Lobashev, A. Nozik, V. Pantuev, V. Parfenov and 3 more. 2011
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An electron antineutrino mass has been measured in tritium $\ensuremath{\beta}$ decay in the Troitsk $\ensuremath{\nu}$-mass experiment. The setup consists of a windowless gaseous tritium source and an electrostatic electron spectrometer. The whole data set acquired from 1994 to 2004 was reanalyzed. A thorough selection of data with the reliable experimental conditions has been performed. We checked every known systematic effect and obtained the following experimental estimate for neutrino mass squared ${m}_{\ensuremath{\nu}}^{2}=\ensuremath{-}0.67\ifmmode\pm\else\textpm\fi{}2.53\text{ }\text{ }{\mathrm{eV}}^{2}$. This gives an experimental upper sensitivity limit of ${m}_{\ensuremath{\nu}}l2.2\text{ }\text{ }\mathrm{eV}$, 95% C.L. and upper limit estimates ${m}_{\ensuremath{\nu}}l2.12\text{ }\text{ }\mathrm{eV}$, 95% C.L. for Bayesian statistics and ${m}_{\ensuremath{\nu}}l2.05\text{ }\text{ }\mathrm{eV}$, 95% C.L. for the Feldman and Cousins approach.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/78a99dde790c7dede3a6e4c13a376e55865be361
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In Nuclear and High Energy Physics
Citations in the corpus
- CMB-S4 Science Case, Reference Design, and Project Plan (2019, methodology): “Current measurements from Mainz [232] and Troitsk [233] limit this mass to < 2.”
- Neutrino electromagnetic interactions: A window to new physics (2014, background): “(2.79) The most stringent 95% CL limits obtained in the Mainz (Kraus et al., 2005) and Troitsk (Aseev et al., 2011) experiments, mβ ≤ 2.3 eV (Mainz), (2.80) mβ ≤ 2.1 eV (Troitsk), (2.81) are shown in Fig.”
- Neutrinoless Double Beta Decay: 2015 Review (2016, background): “The second approach, instead, is presently limited to about 2 eV [146, 147], even having the advantage of being obtained in controlled conditions, that is, in laboratory.”
- Status of Neutrino Properties and Future Prospects—Cosmological and Astrophysical Constraints (2017, methodology): “05 eV from the Troitsk [1] experiment, and mβ < 2.”
- Current Direct Neutrino Mass Experiments (2013, methodology): “Combining all the selected Troitsk data from 1994 to 2004 gave [67]”
- A facility to search for hidden particles at the CERN SPS: the SHiP physics case (2015, background): “from those from the kinematics of tritium β-decay [156, 317, 318]) as well as cosmological bounds on the sum of neutrino masses (e.”