SOLAR NEUTRINOS (with a tribute to John N. Bahcall)

Abstract

John N. Bahcall championed solar neutrino physics for many years. Thanks to his pioneering and long-lasting contributions, this field of research has not only reached maturity, but has also opened a new window on physics beyond the standard electroweak model through the phenomenon of neutrino flavor oscillations. We briefly outline some recent accomplishments in the field, and also discuss a couple of issues that do not seem to fit in the “standard picture, ” namely, the chemical controversy at the solar surface, and possible implications of recent gallium radioactive source experiments. Figure 1: John N. Bahcall explains “Why the Sun shines ” in his Lectio Magistralis, before receivin

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