Particle Physics (16 of 41) Elementary Particles: How Are Mesons Made From Quarks?

In this video I will explain how mesons are made from quarks.

Next video in the Particle Physics series can be seen at:

[MichelvanBiezen]

We are working on the next set this week

[bryanchambers]

You lecture very well. When I teach particle physics next year I am going to follow how your approach.

[physicalscience]

such a huge, compact and intellectual lectures very informative ❤

[jaadarl]

So if ever the proton (u, u, d) is not stable then simply the universe will not exist. And I think quantum mechanics can explain why biological beings are not immortal and I think it has something to do with particle stability

[jamshedsaeed]

Sir what is the symbol of anti quarks . As we write neutron as two down arrow and one up so how can we write a one up quark and second anti down quark ?

[Bharathkumar-odje]

i have one doubt . muon is a lepton family . pion is a meson-quark family . but how does a pion decay into muon ie lepton into meson, kaon to pion decay makes sense as they both are mesons and kaons are heavier and unstable, so they can decay into lighter stable particles .. wait pion is also not a stable particle ?? 🤔🙄 im confused .. generally heavier unstable particles decay into stable lighter particles right ..

[willylang]

Ever since reading "The Nuclear Apple" by Paul Taunton Matthews just after leaving school I have maintained an interest in sub-atomic particles. As time went by I read many articles on the subject - but rather than further my understanding, I became more and more confused by the sub atomic particle zoo. - until I watched this series of videos. I cannot thank you enough for your efforts in producing them and look forward very much to videos 17-30.

[gorkematay]

Sir, first of all thank you for all these valuable instructive videos. I have a question that stick in my mind. As I understand both pion and gluon are responsible for the strong nuclear force. However there should be a difference between them. Can we say, basically, gluons mediate the strong force between quarks whereas pions mediate the nucleon-nucleon interaction or residual strong force?

[tchevrier]

if a down quark decays into an up quark+electron+electron antineutrino,  wouldn't that imply that a down quark is not an elementary particle.  Same question for the other 4 quarks.

[tchevrier]

Probably the best explanation I've seen to date.
I look forward to seeing 17-30

[OnumLCT]

Just to make sure, when you say charges, e.g. The charge of a Pion, you are talking about  electromagnetic charges, am I correct??