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tumor
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Neutrons and protons consist of quarks right? my question is ;has anyone theory as to how are they aranged inside of protons/neutrons?. one orbits another or whatever?
tumor said:Neutrons and protons consist of quarks right? my question is ;has anyone theory as to how are they aranged inside of protons/neutrons?. one orbits another or whatever?
meteor said:It's postulated that the interchange of gluons maintains the quarks together, but I've never understood completely how it works. If a gluon hits a quark it should push instead or pull it, right?
Here's a simpler problem that one can actually say things about. Forget about baryons since that's a three body problem, which isn't even solvable in classical mechanics, and think about mesons (two-quark objects). Also forget about the light quarks because the theory actually has difficulties with them due to the inherently relativistic structure. So consider the heavy quark mesons. One can approximate the interaction potential as a piece that falls off with the sep. distance and another that increases linearly with the sep. distance. Now this can be solved through the Schroedinger eqn, so you get a whole spectrum of states. Since the potential is actually radial, you get the same angular momentum states as in the hydrogen atom. So there are orbital quantum numbers in this case, yes, and one expects such numbers for baryons and lighter mesons too. But I hope you know enough not to associate this with classical orbitstumor said:Neutrons and protons consist of quarks right? my question is ;has anyone theory as to how are they aranged inside of protons/neutrons?. one orbits another or whatever?
zefram_c said:Here's a simpler problem that one can actually say things about. Forget about baryons since that's a three body problem, which isn't even solvable in classical mechanics,
tumor said:Neutrons and protons consist of quarks right? my question is ;has anyone theory as to how are they aranged inside of protons/neutrons?. one orbits another or whatever?
Mk said:I've noticed that all the diagrams I see are of a triangular formation for baryons and a verticle linear formation for mesons. Though they probably have no idea how they are stuctured.
Those are mesons (the neutral kaons) which have a strange content yet having zero net strange charge. The K-zero-short and K-zero-long are very similar particles with different lifetimes decaying respectively in two and three pions. Historically, it was a serious puzzle. See hyperphysics.Rothiemurchus said:why do some mesons have wavefunctions like
Y (down) Y (antistrange) + Y (antidown) Y ( strange) / constant
Theoretical physicists T. D. Lee and C. N. Yang proposed in 1956 that parity need not be conserved in weak interaction decays. In 1957 Chien-Shiung Wu showed this violation of parity conservation in the beta decay of cobalt. Even with the violation of parity, it was thought that the combination of charge conjugation and parity would leave the system invariant (CP invariance). An experiment by Cronin and Fitch in 1964 showed that there was a small CP violation in the kaon decay, so the kaon has played a central role in the discussions of these symmetries since that time.
Not really. The kaon is a quantum superposition of the two states, but there is no weak process transforming one flavor into another before the decay of those particles.Rothiemurchus said:Is this because the strange and down quarks can change into one another as time passes? And how do we know this is really happening?
Rothiemurchus said:particle physicists say that the electric force = colour force at 10^-17 metres
Rothiemurchus said:Also when particle physicists say that the electric force = colour force at 10^-17 metres, what is the magnitude of the force at 10^-17 metres and
was qed used to calculate the electric force at 10^-17 metres?
Is there a table of electric force against distance for qed somewhere?
Rothiemurchus said:This is to do with asymptotic freedom and the colour force getting weaker at shorter
distances.I'll try to find the website where I orignially read it.
Rothiemurchus said:I can't find the website where I read that number many months ago.
When you say coulomb potential do you mean qed or kq1q2/r^2?
Quarks are tiny subatomic particles that make up neutrons and protons. They are considered the building blocks of matter and are held together by strong nuclear force.
A neutron is composed of three quarks - two down quarks and one up quark. A proton is also composed of three quarks - two up quarks and one down quark.
Quarks are arranged in a specific pattern within a neutron and a proton. They are arranged in a triangular shape, with two quarks on the bottom and one quark on the top for a neutron, and two quarks on the top and one quark on the bottom for a proton.
The arrangement and combination of quarks within neutrons and protons contribute to their overall stability. The strong nuclear force, which holds the quarks together, is responsible for the stability of these subatomic particles.
In addition to quarks, there are also gluons and virtual particles present within a neutron and a proton. Gluons are responsible for mediating the strong nuclear force between quarks, while virtual particles are constantly popping in and out of existence within the particles.