PORTUGAL FASTER THAN LIGHT JÁ QUASE APANHAMOS A DÍVIDA

O MEU NEUTRINO DEVE-TE?

O MEU HAVER NEUTRINA-TE

NEUTRINAÇÕES DE UM REFLECTOR DE FODÕES

IF ALL BERTO JOÃO IMAGINE TWO DEBTS:

if you just imagine two neutrino energy-momentum vectors that are exactly inverse to each other, one of them has the opposite sign of energy than the other and it goes backwards in time, so it looks like an antiparticle spinning in the opposite direction (in frames where the energy is positive) and it is therefore allowed by angular momentum conservation: the situation will look like a continuous world line of a single particle in a fixed frame, anyway.

What is really relevant is a decay to vacuum with more than 2 external lines. For example, take a Z boson and two neutrinos. The Z-boson may compensate your violation of spin by one and the momenta may also add to zero if you allow negative-energy spacelike energy-momenta for the neutrinos. So this instability would still be there.

AND THE ALL BERTO JÃO DEBT