Study of neutrino electromagnetic properties with the prototype of the Borexino detector
19 June 2003
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, mu(nu). The new upper limit for mu(nu) from pp and Be-7 solar neutrinos is (5.5 x 10(-10))mu(B) (90% c.l.) in the Standard Solar Model scenario. This is the first limit on mu(nu) obtained using sub-MeV neutrinos. The sensitivity of the prototype to the neutrino charge radius and the neutrino radiative decay are also presented. (C) 2003 Published by Elsevier Science B.V.