RE: First collisions at the LHC with unprecedented Energy! (Ask a particle physisicist)
September 2, 2015 at 11:22 pm
(September 2, 2015 at 10:57 pm)Alex K Wrote: QCD: indeed, QCD has the curious property that the interaction becomes stronger at large distances/low energies, which makes studying it much harder. Why QCD has this property is hard to explain visually. Possibly because I don't understand it well enough. Maybe this: the larger the distance and the longer one waits, the more time the virtual particles between say two quarks have to build up force. It indeed ends up looking like a sticky mass of glue between them.
I need to buy a better intuition plug-in.
If the interaction is stronger at larger distances, shouldn't the amount of work needed to remove the particles (quarks?) away from one another make the far apart particle condition one of higher (internal) energy? Or isn't the interaction one of binding the particles together? I'm confused about what high/low energy means in this context.
So how, exactly, does God know that She's NOT a brain in a vat?
