Limits on the neutrino magnetic moment from the MUNU experiment
Z. Daraktchieva, J. Lamblin, O. Link, C. Amsler, M.Avenier, C., Broggini, J. Busto, C. Cerna, G. Gervasio, P.Jeanneret, G.Jonkmans, D.H., Koang, D. Lebrun, F. Ould-Saada, G. Puglierin, A. Stutz, A. Tadsen,, J.-L.Vuilleumier
TL;DR
The MUNU experiment investigated electron antineutrino-electron scattering at low energies to set upper limits on the neutrino magnetic moment, using a gas TPC and liquid scintillator veto system.
Contribution
This work provides new experimental upper bounds on the neutrino magnetic moment through low-energy scattering measurements at a nuclear reactor.
Findings
Established upper limits on the neutrino magnetic moment.
Demonstrated effective background suppression using liquid scintillator veto.
Measured the electron recoil spectrum from antineutrino interactions.
Abstract
The MUNU experiment was carried out at the Bugey nuclear power reactor. The aim was the study of electron antineutrino-electron elastic scattering at low energy. The recoil electrons were recorded in a gas time projection chamber, immersed in a tank filled with liquid scintillator serving as veto detector, suppressing in particular Compton electrons. The measured electron recoil spectrum is presented. Upper limits on the neutrino magnetic moment were derived and are discussed.
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