Questions tagged [quarks]
The quark model postulates that the hadrons such as protons and neutrons have an inner structure; quarks.
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Where do the charge and mass go when a gluon pops out of existence? [duplicate]
A nucleon is made up of a sea of quarks and gluons that pop in and out of existence. Color charged gluons move at $c$ and thus make up 99% of the mass of the atom. Where does this charge and kinetic ...
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If quark stars were to exist, would we expect them to demonstrate more extreme forms of the behaviours observed from neutron stars?
For example - would we expect quark stars to have intense magnetic fields in the same way neutron stars do, that could then lead to them becoming pulsars?
Or would the breakdown of hadrons into quark ...
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How to show the interaction of two quarks inside a proton through the exchange of a gluon?
I want to show the interaction of two quarks inside a proton through the exchange of a gluon between them. I know that a proton contains three quarks, but I only need to show the interaction between ...
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If either existed, how would the process of a quark star transforming into a strange star alter the physical size of the object?
I'll admit this is actually several questions rolled into one...
1 - Assuming I understand the theory behind quark stars correctly, only a certain number of up and down quarks can occupy the same ...
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Do a particle and an anti-particle have to be of opposite colors to annihilate? [duplicate]
Could you tell me which of these three is closest to the truth?
A green up quark will annihilate any anti-quark.
A green up quark will only annihilate an anti-green anti-quark.
Color charge shifts ...
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What are some concrete examples of reactions involving the color neutral gluons with the quarks and antiquarks
Context
The context of this question pertains to the reactions involving quarks and gluons. The scope of the question is limited to reactions involving quarks and color neutral gluons.
I understand ...
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Positive kaon decay Feynman diagram and difference in branching ratios
Question: Help me draw the correct feynman diagram for reaction (ii)
I am trying to look at the branching ratios and feynman diagrams for the two following decays:
i) $K^+ \to \pi^+ + \pi^- + e^+ + \...
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How many quark-antiquark pairs formed because of radiation pressure on baryons after the Big Bang?
Did quarks and antiquarks form after baryons formed due to stretching of baryons by radiation pressure and quark confinement in QCD theory?
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Does the colour force between two quarks get stronger because gluons emit more gluons or because quarks emit more gluons?
Does the colour force between two quarks moving apart get stronger because gluons emit more gluons or because quarks emit more gluons?
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What happens when we try to rotate a proton?
Statement: I am well aware that protons are not solid marbles and do not have quadrupole moments. I have read Shapes of the Proton.
I would like to know:
If we attempt to transfer angular momentum to ...
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Quarks' motion inside the neutron [duplicate]
Neutron's quark structure is udd.
In the neutron, how do the quarks move?
Do up quarks rotate around the down quark?
Do the down quarks rotate around the up quark?
Do they move like the two-body ...
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Do Protons and Neutrons Have a Temperature?
The internals of a proton are said to be a swarm of quarks (in an answer to a previous question). If so, is there kinetic character to this swarm, and, if so, could the swarm be interpreted to have a ...
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How to prove that the chemical potential of the up quarks is the same as that of the down quarks in a quark gluon plasma?
I am attempting to prove that while in chemical equilibrium, the chemical potentials $\mu _{u_L}=\mu _{d_L}$ in a quark gluon plasma. I was able to show that the up-sector quarks have the same ...
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Equivalent proton-neutron Feynman diagrams
Are the following Feynman diagrams equivalent?
I would assume not given the different numbers of gluons involved.
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Could you image something using a quark microscope?
As all quarks are fermions, just like electrons, would it be possible to use them to image things smaller than can be imaged using electron microscopes through similar means?
(This question may not ...
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