D
darkmatter4brains
Guest
Anybody know what the latest consensus is on the mechanism of Quark Confinement? Or, is this still a mystery of sorts?
Thanks!
d4b
Thanks!
d4b
Keep up to date with the Space calendar 2022: Rocket launches, sky events, missions and more!
It Not a mystery, bascially due to Gluons field interactions, the attractive force felt by quarks upon each other grow stronger, not weaker as a function of distants, at a great enought distant the force / energy needed to pull a quark from another quark literally create a quarks and antiquark pair. At this distant the polarization of Vacuum, shield the anti quark created from the other quarks in the particle and it form a bounded state with the removed quark.darkmatter4brains":oq8np88q said:Anybody know what the latest consensus is on the mechanism of Quark Confinement? Or, is this still a mystery of sorts?
Thanks!
d4b
I thought the strong force falls off rapidly with distance .... the energy of which goes like ~ [e^(-mr)]/rlanceromega":k85jaf25 said:It Not a mystery, bascially due to Gluons field interactions, the attractive force felt by quarks upon each other grow stronger, not weaker as a function of distantsdarkmatter4brains":k85jaf25 said:Anybody know what the latest consensus is on the mechanism of Quark Confinement? Or, is this still a mystery of sorts?
Thanks!
d4b
yeah, but I'm lazy, PLUS, if I did, you wouldn't have had this interesting thread to read.MeteorWayne":zmqa73n4 said:Maybe you should have done the research before you posted this thread in Physics
Well alot, first it was the introduct of Gauss Field equation into QCD to show how terms cancel out, this led to the development of lattice QCD calculation that allow scientist to compute the field strength of Gluon quark interactions.darkmatter4brains":349eazfw said:yeah, but I'm lazy, PLUS, if I did, you wouldn't have had this interesting thread to read.MeteorWayne":349eazfw said:Maybe you should have done the research before you posted this thread in Physics
Also, this did lead me to a question that research isn't helping me with ...
I looked through my old QFT textbooks from school and apparently learned this all 10 years ago ... isn't memory a wonderful thing.
What I had highlighted in there from 10 years ago, was this:
In QED, you've got the Feynman diagrams, which basically represent a double series expansion of a path integral. Each higher order term in the double series expansion is represented by a more and more complicated Feynman diagram, with more and more vertices. The sum of all these Feynman diagrams represents the actual physical process. Sounds like the sum would blow up, but it doesn't. That's because each vertex contributes a factor of alpha - the fine structure constant (1/137). So, higher order diagrams start to contribute negligible amounts very quickly.
But in Quantum Chromodynamics, the further out you are (where the mechanism of quark confinement is going to kick in!) the vertexes actually start to contribute more and more. So, the sum DOES blow up here and the Feynman calculus breaks down.
So that's my question: ~10 years ago this was a problem with QCD, there was no real analytical solution for quark confinement, just an intuitive explanation, per the wikipedia article excerpts above.
I'm curious what progress has been made on this. I'm sure something has, but I can't seem to find anything on it. What's the solution to this?
Thanks. I guess this at least gives me a direction to read more about this. I'd like to see how the math works out - the path integral issue seems like a tricky one to get around. It'll be interesting to see how they did it.lanceromega":1n6nakg8 said:Well alot, first it was the introduct of Gauss Field equation into QCD to show how terms cancel out, this led to the development of lattice QCD calculation that allow scientist to compute the field strength of Gluon quark interactions.darkmatter4brains":1n6nakg8 said:yeah, but I'm lazy, PLUS, if I did, you wouldn't have had this interesting thread to read.MeteorWayne":1n6nakg8 said:Maybe you should have done the research before you posted this thread in Physics
Also, this did lead me to a question that research isn't helping me with ...
I looked through my old QFT textbooks from school and apparently learned this all 10 years ago ... isn't memory a wonderful thing.
What I had highlighted in there from 10 years ago, was this:
In QED, you've got the Feynman diagrams, which basically represent a double series expansion of a path integral. Each higher order term in the double series expansion is represented by a more and more complicated Feynman diagram, with more and more vertices. The sum of all these Feynman diagrams represents the actual physical process. Sounds like the sum would blow up, but it doesn't. That's because each vertex contributes a factor of alpha - the fine structure constant (1/137). So, higher order diagrams start to contribute negligible amounts very quickly.
But in Quantum Chromodynamics, the further out you are (where the mechanism of quark confinement is going to kick in!) the vertexes actually start to contribute more and more. So, the sum DOES blow up here and the Feynman calculus breaks down.
So that's my question: ~10 years ago this was a problem with QCD, there was no real analytical solution for quark confinement, just an intuitive explanation, per the wikipedia article excerpts above.
I'm curious what progress has been made on this. I'm sure something has, but I can't seem to find anything on it. What's the solution to this?