Supernova antineutrino interactions cause chiral symmetry breaking and possibly homochiral biomaterials for life

There is some evidence that non-racemic hydrocarbons occur in meteorites. This would indicate an extraterrestrial origin of the homochirality in living systems (proteins, DNA and RNA). The weak interaction breaks chiral symmetry but a robust process is needed. We propose that an SNII explosion antineutrinos could provide this mechanism in the solar cloud. Pre-simple estimates of this possibility are given here.