The Standard Model is (Probably) a Spherical Cow
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- Опубликовано: 11 сен 2024
- Here, we talk about spherical-cow approximations in physics, and how they relate to the progress of science. We argue that the Standard Model, which is our current best model of particles and their interactions, is likely to eventually be found to be a spherical-cow approximation to a deeper theory. We also discuss how some current discrepancies between experimental results and the Standard Model predictions, like those in g-2 of the muon or in results from LHCb, may be our first indications that the Standard Model suffers from bovine sphericity.
Links mentioned in the video:
Spherical Cows!:
• Spherical Cows!
Science as an Iterative Approximation to Nature:
• Science as an Iterativ...
Elon Musk Said Something Important: Be Less Wrong Over Time:
• Elon Musk Said Somethi...
Miniseries on g-2 of the Muon:
• Introducing the Minise...
All those Flavor Anomalies:
• All Those Flavor Anoma...
Hi! Questions?
Before posting a question, I would like to thank you for the answer you gave several months ago on a question I posted on another video about new Physics! Somehow, my RUclips notifications are not working properly and I only ever saw your answer today! thanks again for the time and effort you took to post that!
Ah... one of the favorite physics jokes! Someday, in the far future, I believe people will realize that the whole universe has the shape of a multidiemnsional spherical cow, with spherical udders and all.
Good content, as always. Thank you.
Thanks!
You had me at Spherical Cow.......good content again thanks
This makes me feel a lot better about comparing the Standard Model to the epicycle model of the solar system, haha. Sure, it *works* (mostly), but improvements generally seem to require adding more bells and whistles (i.e. new particles or more Feynman diagrams vs more circles on circles) to make it consistent with observations, and it's only gotten harrier over time. We can do a buttload of math to get some pretty good predictions, but it has still always struck me as being far more descriptive than explanatory. That's why I like to always ponder about where we might be using "circles" when we ought to be thinking of "conic sections" :)
Like "apple + apple = 2 apples" algebra works, not saying much about apples ...
In perturbative QFT we analogously have Feynman diagrams as scenarios, but what are e.g. EM field configurations of particles they contain?
Spherical cow of electron 4*3.14*me^2 compare to spherical cow of proton(higher energy) 4*3.14*pm^2, then time fine structure constant 1/137.036 deduce ((4*3.14*me^2)/(4*3.14*pm^2))/137.036=(me/pm)^2/137.036=1/(1836.1527^2*137.036)=2.16*10^-9=0.00116592026[experiment data]-0.0011659181[theoretical prediction from standard model] : anomalies of (g-2)/2 factor of muon magnetic moment, pm=1.67262*10^-27 kg is proton mass, me=9.10938*10^-31 kg is electron mass, pm/me=1836.1527.
Which beamer template do you use for these slides? Great content, it will take me a few months to catch up.
Hi!
Well, I looked at my latex file, and my \usetheme line is commented out, so I appear to just be using some default beamer settings. (I don't remember why I made this choice, but it might have been in order to fit more stuff on the slides--not sure!)
Many thanks!
Great explanation. I should have watched this vidio before I watched the vidio on the W boson. Unfortunatly RUclips does that.Never in order.
So where to search for this hypothetical deeper theory effectively described with SM?
Maybe it is worth to finally ask about e.g. EM field configurations behind particles, Feynman diagrams - (topological) soliton particle models go in this direction, recently grow in popularity (skyrmions), and effectively are described with perturbative QFT.
Where to look for this deeper theory? Oh, I wish I knew, I wish I knew....
;-)
@@ThinkLikeaPhysicist Perturbative QFT is "apple + apple = 2 apples" type algebra for particles - wanting to get deeper, we need to start asking "what are these apples" - e.g. what are field configurations of particles?
For example electron is, among others, electric monopole and magnetic dipole - so what exactly is EM field configuration around it?
Or simpler: what is mean energy density rho(r) in given distance from electron?
From electric field alone, asymptotically rho(r)~E^2~r^-4 ... but it integrates to infinity - fundamental problem swept under the rug (repairable).
And soliton models finally try to attack this kind of neglected fundamental questions/issues - e.g. Manfried Faber electron model making Gauss law count topological charge (enforcing charge quantization), and regularizing to finite energy (511keV).
ps. Thanks for very nice videos! :-)
As for Elon, well, ......sounds a bit like The Relativity of Wrong - by Isaac Asimov, written donkeys years ago and available here on RUclips. If you ever want a good argument with 'Thomas the Doubter' about seeming imperfection, then this is it.
Hi!
Thank you for pointing me to this. I hadn't run across it before, and it was, perhaps not surprisingly, incredibly good at getting the point across.
I'm including a link to a youtube video of a reading of the essay, in case anyone seeing this comment is interested!
ruclips.net/video/N24fkXCkd0k/видео.html
@@ThinkLikeaPhysicist Glad you took the trouble to listen to it. I often think about these arguments and wish they were taught in school. There is a much shortened version and has some visuals ruclips.net/video/2tcOi9a3-B0/видео.html
No name of any author? Why? Because it is BS?
Wasted time.