The Nobel Prize was recently awarded for the discovery that the neutrino has mass. Neutrinos then should follow my equation 6. The required data is uncertain so the result would represent only a ballpark value. The value of the rest mass was chosen as 0.32 ev/c2 and the rest radius as 3 x 10-17 cm from Wikipedia.
m2 = r0m0c2 / G
m2 = ( 3 x 10-17 cm )( 0.32 ev/c2 )( 1.8 x 10-33 g/ev )( 9 x 1020 cm2/ sec2 ) / 6.67 x 10-8 cm3 /g sec2
m = 1.53 x 10-11 g = 8.5 x 10+21 ev = 8.5 x 10+15 Mev
This would be its maximum value on traveling at its absolute velocity, V, where
V2 = c2 – Gm0/r0 = c2 – ( 1.13 x 10-12 cm / sec )2
This is far from the largest value reported, around 108 Mev, seen in turbulent stellar gases. As with the cosmic rays the neutrinos are part of other gravitational systems so only part of their absolute velocity is observed.