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Probing the Sun’s inner core using solar neutrinos: A new diagnostic method

Ilídio Lopes*

  • Centro Multidisciplinar de Astrofísica, Instituto Superior Técnico, 1049-001 Lisboa, Portugal and Departamento de Física, Universidade de Évora, 7002-554 Évora, Portugal

  • *ilidio.lopes@ist.utl.pt; ilopes@uevora.pt
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Phys. Rev. D 88, 045006 – Published 7 August, 2013

DOI: https://doi.org/10.1103/PhysRevD.88.045006

Abstract

The electronic density in the Sun’s inner core is inferred from the B8, Be7 and pep neutrino flux measurements of the Super-Kamiokande, SNO and Borexino experiments. We have developed a new method in which we use the KamLAND detector determinations of the neutrino fundamental oscillation parameters: the mass difference and the vacuum oscillation angle. Our results suggest that the solar electronic density in the Sun’s inner core (for a radius smaller than 10% of the solar radius) is well above the current prediction of the standard solar model, and by as much as 25%. A potential confirmation of these preliminary findings can be achieved when neutrino detectors are able to reduce the error of the electron-neutrino survival probability by a factor of 15.

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Phys. Rev. D 88, 045006– Published 7 August, 2013
  • Received 12 February 2013

© 2013 American Physical Society

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