|
Leptons (Greek again—the ‘light’ elementary particles: electron ε, muon μ, tau τ, and neutrino ν)
(i) Electrons
At this imponderable level Matter loses its concentration, Becoming almost mathematical foam.
Another of Nature’s lucky shots: The electron weighs one Thousandth the mass of a proton, Yet its negative charge neutralises The proton’s electric field—exactly.
It’s as if each fundamental clan knows That it must play ball with the other, Constitutes itself in advance And overcomes the millenial gulf.
Because of such teamwork Matter remains stable, And we’re here to weigh the result.
(ii) Neutrinos – ‘little neutral ones’, no electric charge, negligible or no mass
An answer may be blowing in the solar wind. While you read, billions of neutrinos Inundate your body at the speed of light. By this comma, they’re already past the moon!
Individually, the lightest entity yet detected. But there are so many self-effacing eunuchs (100-1000 swamp every cubic centimetre), Collectively, they may outweigh all the visible galaxies!
Could this block the cosmic expansion, Throttling the universe, squeezing it back To a ‘Big Crunch’? Don’t dismiss the lightweights— They might pack the knockout punch!
|