Timeline for Why are muons considered to be elementary particles in the Standard Model?
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
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| Mar 25, 2022 at 3:44 | vote | accept | Brad Cooper - Purpose Nation | ||
| May 24, 2020 at 17:15 | comment | added | Bastam Tajik | I like this answer but, what about the old deviation of the muon anomalous magnetic dipole moment from SM predictions. According to what I've learnt till now, the question that whether a particle is point-like or not can be answered according to its form factor behaviour and the AMDM of fermions are very well connected to the second form factor of an EM current for a fermion. en.wikipedia.org/wiki/Anomalous_magnetic_dipole_moment | |
| May 3, 2020 at 5:55 | history | edited | knzhou | CC BY-SA 4.0 |
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| Aug 19, 2016 at 13:58 | comment | added | Brad Cooper - Purpose Nation | @knzhou thanks, appreciate you translating into plain language the high-level criteria we might use to evaluate the "fundamental-ness" of a particle and whether it meets a definition of "elementary" and/or inclusion into the Standard Model. Perhaps the Standard Model authorities would post a similar criteria overview that laypeople like myself would understand =) | |
| Aug 19, 2016 at 13:11 | comment | added | Brad Cooper - Purpose Nation | @MartinKochanski agree. that's why I chose it as the best answer, although I do appreciate all other detailed responses which provide further context. | |
| Aug 19, 2016 at 13:09 | comment | added | Brad Cooper - Purpose Nation | @JanDvorak the timing of that UCI 5th force article couldn't have been better. Now we know, it's the protophobic X boson that binds the neutrinos to the electron inside a muon! =) | |
| Aug 19, 2016 at 1:29 | history | edited | knzhou | CC BY-SA 3.0 |
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| Aug 19, 2016 at 0:23 | vote | accept | Brad Cooper - Purpose Nation | ||
| Mar 25, 2022 at 3:43 | |||||
| Aug 18, 2016 at 18:46 | history | edited | knzhou | CC BY-SA 3.0 |
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| Aug 18, 2016 at 11:20 | comment | added | Martin Kochanski | This is the only answer that gives the actual reasons for the choice, rather than saying that "it is true because Authority says it is true". | |
| Aug 18, 2016 at 8:42 | comment | added | knzhou | @JanDvorak That purported force is unrelated to this question, though. It wouldn't bind neutrinos to electrons. | |
| Aug 18, 2016 at 8:40 | comment | added | John Dvorak | "we have no indications of a fifth force now" - phys.org/news/2016-08-physicists-discovery-nature.html | |
| Aug 17, 2016 at 19:52 | history | answered | knzhou | CC BY-SA 3.0 |