to describe how particles attract one another. related to proton-neutron stability. mention colour.
Why the neutrino-anti-neutrino pair come into existence itself requires some explanation. Examining the overall V-charge of the neutron the first hint as to why this could happen becomes clear. The V-charge of the neutron is +1. The sum total V-charge and T-charge of all particles in the universe respectively is zero. All surrounding particles are therefore balanced at zero charge. A stray neutron with a +1 V-charge is therefore hugely disruptive (effectively a V-ionic particle). Logically therefore a bare neutron would be more likely to influence the universe's continuous creation of particle-anti-particle pairs for a sufficient duration such that the paired phase-transitions can occur. This is just one possible explanation, however with further examples (the most elegant of which is the Pion phase-transition) we see more support for the above hypothesis.
* for cut/paste purposes:
VT0 T0 V 0
up TVT
anti-up
down
anti-down VTV
electron
anti-neutrino
lkcl 2016-12-29