Baryons and Mesons and Quarks, Oh My! (Standard Model Part 4) @zapphysics

Uploaded August 2021 | Updated September 2026, 8 hours ago

We continue our discussion of the standard model of particle physics by looking at how the large number of hadrons observed in the mid-20th century can be explained by just a few, simple quarks.

Pretty Much Physics' video on Clebsch-Gordan Coefficients: youtube.com/watch?v=UPyf9ntr-B8

Baryons and Mesons and Quarks, Oh My! (Standard Model Part 4)

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$What does 1+2+3+... REALLY equal and what does it have to do with particle physics? The sum of natural numbers, 1+2+3+..., is a fairly regularly cited sum to show off the strange nature of mathematics. This is mainly due to the fact that it can (seemingly) easily be shown to be equal to -1/12. Thats right. Not only is the result finite, it is also a fraction as well as negative! This seems completely crazy and thats because there is an important factor of infinity that is hidden from view when proving this in the usual ways. So lets find out what this sum is equal to while still retaining this mysterious hidden infinity. The way of doing this is through what is known as regularization of the series (which is secretly done is the normal way of evaluating this sum as well). This parallels nicely to a technique in physics known as renormalization, where we take infinities that show up like this and hide them in other places, like the masses and charges of particles. This allows us to have finite physics, but we lose the ability to predict these quantities. ► Music Credit: Dj Quads Track Name: Its Near Music By: Dj Quads @ https://soundcloud.com/aka-dj-quads Original upload HERE - https://www.youtube.com/watch?v=UI79n3E1U_g Follow me on Twitter: https://twitter.com/ZapPhysics$

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Baryons and Mesons and Quarks, Oh My! (Standard Model Part 4)