quantum mechanics - Weak Interaction - Physics Stack Exchange
2019年10月30日 · But for weak nuclear force there is something more to it, it causes the particles on which it acts to change it's properties (like proton turning into neutron and vice versa) which is more than just a change in momentum. So my questions is: How do physicists account for these properties of weak interaction mathematically? Thanks in advance.
Neutrinos and Weak interaction - Physics Stack Exchange
2024年1月1日 · A weak interaction which involves only quarks is called a "hadronic weak interaction," because particles ...
particle physics - Weak interaction and charge conjugation $C ...
2019年8月12日 · So the weak interaction violates C maximally, since the first reaction has a left-chiral electron, whereas the second reaction has the positron be right handed. So the second reaction that actually goes requires a P operation to be applied at the same time to yield the C -conjugate of the first one.
What exactly does the weak force do? - Physics Stack Exchange
2020年6月28日 · The weak interaction changes the flavor of quarks and leptons. It acts on the particles' weak hypercharge, which is a component of weak isospin. Below are some Feynman diagrams, courtesy of Wikipedia, that illustrate a typical weak interaction: the capture of an electron by a proton. The weak interaction changes the flavor of a quark in the ...
particle physics - Difference between weak and strong interactions ...
Thus we see the effect of the weak interaction only where a strong one is not allowed. Neutron decay is the classical example and where the weak interaction first was observed. In general, the typical lifetime for the strong interactions is less than $10^{-23}$ seconds , whereas that for the weak interactions can be anything from $\sim 10^{-11 ...
particle physics - How to explain the weak force to a layman?
The weak force "looks" different because in the first (and still most important) reincarnation we have encountered it - namely beta-decay (including the decay of the neutron) - the force seems to be a contact interaction: it has an extremely short range, essentially zero.
quantum mechanics - How to determine a strong or weak …
Doesn't that mean that it is weak interaction? You had the quark content wrong. Yes, the correct one has the same strangeness left and right, 0. What exchange particle transfers strangeness? If that question doesn't make sense or has a complex answer to it, please answer this question. what is the exchange particle in this interaction?
Change of flavour, Weak interaction - Physics Stack Exchange
2016年6月8日 · $\begingroup$ Weak isospin is another flavor quantum number, associated to the weak interaction. With isospin you had a doublet with a quark up and a quark down. With isospin you had a doublet with a quark up and a quark down.
W vertex factor in weak interaction - Physics Stack Exchange
2017年4月21日 · W vertex factor in weak interaction. Ask Question Asked 7 years, 8 months ago. Modified 7 years, 8 months ago.
Why does the weak force distinguish left and right handedness?
I'm wondering why the weak interaction only affects left-handed particles (and right-handed antiparticles). Before someone says "because thats just the way nature is" :-), let me explain what I find needs an explanation: In the limit of massless fermions, chirality (handedness) becomes helicity $(\vec S \cdot \hat p)$.