IS QCD always needed or only when 3 equal Quants are necessary?
For 2 equal Quants could the inverted pauli Spin not be enough ?
These are just arbitrary expansions of an abstract math theory whose symbols cannot be explicated.
Feynman diagrams are just pictorial images of various terms in an exponential expansion. Read "Drawing Theories Apart" by David Kaiser.
QCD is all about quarks and gluons. It is used when you discuss how some elementary particles are thought to be made up of quarks, like the proton and neutron.
Of the three different levels, in the first you use three basic quarks, up, down and strange, plus their respective antiquarks. At this level of discussion they are not
considered virtual particles; but they have not been free quarks observed yet.
Making something real, more concrete?
Thats what I try to do for you guys
Unless you meant reunification (a long way away)
Dear Juan: reification is much older than reunification. It is the fallacious attempt to assign reality to abstract symbols - a risk mathematicians always take.
maybe you are right. the meaning I found was as above.
you give a new definition.
well, it is always a risk for theorists, in physics or science, to talk about
things that will turn out not to exist in the long run. That is the way science works.
there is a body of evidence though, in the standard model, for quarks,
if you care to read about it. The standard model is THE main thrust of particle physics right now and QCD focuses on the dynamics and combinations of the quarks.
In physics, in this case, we do not take the word virtual to signify nonexistant, it just means
very short lived, uncertain energy, so it is within the limits of uncertainty principle.
regards, juan
- Badges
- Science topic
- Similar topics
- Elementary Particle Physics
- Particle