Spectroscopy of Solar Neutrinos
Michael Wurm (1), Franz von Feilitzsch (1), Marianne Goeger-Neff (1),, Tobias Lachenmaier (2), Timo Lewke (1), Quirin Meindl (1), Randoplh, Moellenberg (1), Lothar Oberauer (1), Walter Potzel (1), Marc Tippmann (1),, Christoph Traunsteiner (2)
TL;DR
This paper discusses the advancements in solar neutrino spectroscopy enabled by liquid-scintillator detectors like Borexino, highlighting recent measurements of Beryllium-7 neutrinos and future prospects for detecting other solar neutrino types.
Contribution
It presents the first spectroscopic measurement of sub-MeV solar neutrinos and evaluates future experimental potentials for high-precision solar neutrino detection.
Findings
Measurement of Beryllium-7 neutrino flux achieved.
Potential for detecting Boron-8, pep, and CNO neutrinos discussed.
Implications for solar metallicity ambiguities explored.
Abstract
In the last years, liquid-scintillator detectors have opened a new window for the observation of low-energetic astrophysical neutrino sources. In 2007, the solar neutrino experiment Borexino began its data-taking in the Gran Sasso underground laboratory. High energy resolution and excellent radioactive background conditions in the detector allow the first-time spectroscopic measurement of solar neutrinos in the sub-MeV energy regime. The experimental results of the Beryllium-7 neutrino flux measurements as well as the prospects for the detection of solar Boron-8, pep and CNO neutrinos are presented in the context of the currently discussed ambiguities in solar metallicity. In addition, the potential of the future SNO+ and LENA experiments for high-precision solar neutrino spectroscopy will be outlined.
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