Linked Questions

42
votes
8answers
20k views

Why is the gravitational force always attractive?

Why is the gravitational force always attractive? Is there another way to explain this without the curvature of space time? PS: If the simple answer to this question is that mass makes space-time ...
4
votes
4answers
171 views

Does the weak force have an attractive/repulsive force observable in everyday life like the other forces?

After the correct comments, this question is not here to compare gravity's and EM's long range forces' energetics and amplitudes to microscopic scattering amplitudes of such forces as weak and strong. ...
14
votes
3answers
4k views

Do strong and weak interactions have classical force fields as their limits?

Electromagnetic interaction has classical electromagnetism as its classical limit. Is it possible to similarly describe strong and weak interactions classically?
12
votes
3answers
752 views

Has the weak force ever been measured as a force?

Gravitational and electrostatic forces are everyday phenomenon, and continue to be tested by sophisticated experiments at various distances. Rutherford measured the electrostatic repulsion of alpha ...
6
votes
2answers
945 views

Yukawa interaction between Dirac particles is universally attractive?

Can anyone provide me a specific reference to (or supply themselves) the derivation of the fact that the Yukawa interaction$$\mathcal{L}_{\text{int}} = -g\overline{\psi} \psi \phi$$between Dirac ...
2
votes
2answers
159 views

Why is boson spin number related to attraction and repulsion?

The accepted answer to this question says Since the electroweak interaction is mediated by spin 1 bosons, it is the case that "like (charge) repels like and opposites attract". Another answer ...
1
vote
1answer
81 views

Is there an equation for the weak force?

I have read this question: Is there an equation for the strong nuclear force? Weak force: attractive or repulsive? And yes, I have read the comment, where is says that the weak and the strong ...
0
votes
1answer
85 views

If strong force is not a classical force that attracts and pulls the particles together then why does it keep the particles bound together?

(a) In another answer someone said that Strong force etc are not classical forces that push or pull particles in the classical sense but are interactions between states. If this is true then why ...
1
vote
0answers
53 views

Why can't weak interaction bind neutrino and electron together? [duplicate]

According to wiki, unlike the other three interactions, weak interaction does not produce bound states. However, according to this and this, the weak force should be attractive between particles with ...
0
votes
0answers
65 views

What is the direction of the weak force between electrons and protons?

Is the weak force between electrons and protons repulsive or attractive? Does it affect somehow the electron shells of atoms?