PoS - Proceedings of Science
Volume 332 - XIV International Conference on Heavy Quarks and Leptons (HQL2018) - Neutrino Physics
Real-time sub-MeV solar neutrino spectroscopy with Borexino and best direct limit on the neutrino magnetic moment
D. Bravo-Berguño* and  On behalf of the Borexino Collaboration
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Pre-published on: December 05, 2018
Published on: December 11, 2018
The Borexino neutrino observatory has, for the first time, provided a direct, wideband, precision spectroscopic detection of all $pp$-chain neutrinos (excepting $hep$) and provided the best available limits for the CNO solar neutrino component, updated recently with new data and weaker constraints. In addition, notable improvements in backgrounds, thanks to increased liquid scintillator stability, were enabled by the successful installation and continued operation of the Borexino Thermal Monitoring and Management System (BTMMS) since 2015. This higher scintillator radiopurity brings renewed perspectives for significant reductions in uncertainties, lowering of limits or, under certain conditions, a direct CNO measurement. Meanwhile, Borexino has also recently attained the best model-independent upper limit for the neutrino magnetic moment $\mu_{\nu}$.
DOI: https://doi.org/10.22323/1.332.0051
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