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@INPROCEEDINGS{Ludhova:890234,
author = {Ludhova, Livia and {Borexino collaboration}},
title = {{L}imiting the effective magnetic moment of solar neutrinos
with the {B}orexino detector},
journal = {Journal of physics / Conference Series},
volume = {1342},
number = {1},
issn = {1742-6588},
address = {Bristol},
publisher = {IOP Publ.87703},
reportid = {FZJ-2021-00821},
pages = {012033},
year = {2020},
abstract = {Borexino has provided an updated upper limit on the
effective neutrino magnetic moment of solar neutrinos μβα
< 2.8 x 10−11 μऔ at $90\%$ C.L. This result represents
nearly a factor of two improvement with respect to the
previous result based on 192 days of the Phase-I data. The
current analysis has been performed using 1291.5 days
exposure of the Phase-II data, characterized by a further
improved level of radio-purity of liquid scintillator.
Another key ingredient of the new analysis, lowering the
threshold from 260 to 186 keV, was possible thanks to a
better understanding of the detector-response function at
low energies. The global spectral fit was preformed up to
2970 keV energy, using constraints on the sum of the solar
neutrino fluxes implied by the radiochemical gallium
experiments. From the limit for the effective neutrino
magnetic moment, new limits for the magnetic moments of the
neutrino flavour states were derived.},
month = {Jul},
date = {2017-07-24},
organization = {TAUP 2017, Sudbury (Canada), 24 Jul
2017 - 28 Jul 2017},
cin = {IKP-2},
ddc = {530},
cid = {I:(DE-Juel1)IKP-2-20111104},
pnm = {612 - Cosmic Matter in the Laboratory (POF3-612)},
pid = {G:(DE-HGF)POF3-612},
typ = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8},
UT = {WOS:001432953400033},
doi = {10.1088/1742-6596/1342/1/012033},
url = {https://juser.fz-juelich.de/record/890234},
}