Study of the neutrino electromagnetic properties with the Prototype of the Borexino Detector

Study of neutrino electromagnetic properties with the prototype of the Borexino detector

Physics Letters B Volume 563, Issues 1–2,
19 June 2003, Pages 35-47

doi:10.1016/S0370-2693(03)00579-3

Abstract

The results of background measurements with the prototype of the Borexino detector (CTF) have been used to obtain an upper bound on the neutrino magnetic moment, μ_ν. The new upper limit for μ_ν from pp and ⁷Be solar neutrinos is (5.5×10⁻¹⁰)μ_B (90% c.l.) in the Standard Solar Model scenario.  This is the first limit on μ_ν obtained using sub-MeV neutrinos. The sensitivity of the prototype to the neutrino charge radius and the neutrino radiative decay are also presented.