Linked Questions

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How can a truly elementary particle decay into other particles? [duplicate]

Consider (for example) the next particle decays: The decay of a Higgs and the decay of a muon [in the diagram of which we also see the decay of (virtual) $W^-$ into an electron and its associated ...
4
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4answers
389 views

Is it theoretically possible that electrons are made up of quarks just like protons and neutrons? [duplicate]

Before closing it as a dupe of this. Please go through the question once . Is it theoretically possible that quarks make up an electron ( like you may get a particle with the same electronic charge $(-...
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vote
2answers
316 views

Are electrons really elementary particles? [duplicate]

I know that physicist do accept that fact as "an assumption", or "as a fact" due to "proofs" (or missing unroof). But are electrons really to be considered as elementary particles?
0
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0answers
43 views

Confusion regarding fundamental particles [duplicate]

As per standard model, particles like electron and quarks are considered as the elementary particles (no further division into simpler particles possible). Are those particles really elementary or ...
49
votes
4answers
6k views

What is the mass density distribution of an electron?

I am wondering if the mass density profile $\rho(\vec{r})$ has been characterized for atomic particles such as quarks and electrons. I am currently taking an intro class in quantum mechanics, and I ...
17
votes
5answers
74k views

What are quarks made of?

So atoms are formed from protons and neutrons, which are formed from quarks. But where do these quarks come from? What makes them?
11
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3answers
1k views

Can electrons be non-fundamental in higher dimensions?

I was wondering, is it necessary that all elementary particles remain elementary in higher dimensions too, or can there be a higher curled dimension (like those in string theory) where an electron, ...
10
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3answers
671 views

References on the non-compositeness of the known elementary particles

What paper(s) or theory(s) describe or prove that the elementary particles that we have determined today cannot be made up of smaller more fundamental particles?
9
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2answers
5k views

Why is an electron considered a point-particle?

Apparently, an electron has mass not greatly smaller than a proton (roughly 1/20, I read, the rest being just binding energy) its volume should, therefore, not be a lot smaller, and its radius between ...
1
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3answers
1k views

Are electrons miniature black holes? [duplicate]

For something to be a blackhole, it must have gravity and the radius must be smaller than the schwarzschild radius for its mass. -Electrons have gravity -Electron are theoretically believed to be ...
5
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2answers
583 views

Why should I believe that "elementary" particles are indeed elementary?

Atoms were once thought to be indivisible (i.e. have no substructure) until it was discovered that they are made of protons and neutrons. Protons and neutrons in turn are made of quarks, and that's ...
3
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2answers
206 views

How to prove or disprove that elementary particle has no spatial extention?

We are told that elementary particles has dimension zero and take up no space. For example, the electron is a point particle that have a negative unit charge, also has mass and spin, but no size. My ...
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1answer
86 views

Is there scientific work about the inner structure of the electron and its magnetic and electric fields?

Since the electron posseses permanently an electric and a magnetic field to search for a model of the constituents of this inner structure and the two fields should be good scientific area of research....