0 a very small piece of matter that has no electrical chargeand exists for a very short time, produced during some types of nuclear reactions
1 a very small piece of matter that has no electrical charge, that is produced during some types of nuclear reactions, and exists for a very short time
The conditions for a significant enhancement factor for the neutrino-anti-neutrino pair emission were established.
Instead, we shall follow here a different approach, which will eventually lead to the same kind of kinetic equation for the neutrino distribution.
As shown above, the parametric instability of the neutrino field could act as an amplifier of the direct and modified processes.
Cosmological neutrinos: can they contribute to molecular homochirality?
We see that the similarity is striking and that, again, the collective neutrino dynamics in a plasma strongly resembles that of the electrons.
If neutrinos are of sufficiently low mass, then it is expected that they probably contribute approximately the same amount.
The second is when the two possible neutrino helicity states are coupled by the electron plasma oscillations.
The collective coupling of neutrinos and anti-neutrinos in a dense plasma is considered.
