Weak Interactive Force: Mesons & Bosons

[Xtreme]

What exactly does the weak interactive force act on?
Does it act on Mesons and Bosons?

 

[jtbell]

It acts on leptons (electron, muon, tau, and neutrinos) and quarks, and therefore on all particles built out of quarks (hadrons, which includes baryons and mesons). And the W and Z bosons which themselves mediate the weak interaction.

To put it another way, everything except photons, gluons and (if they exist) gravitons.

 

[Vanadium 50]

To put it another way, everything except photons, gluons and (if they exist) gravitons.

It couples to photons and gravity as well. So everything except gluons.

 

[hagi]

One should also point out that the charged weak current interaction (W-boson) just couples to particles in the left-handed chirality eigenstate whereas the neutral weak current interaction (Z-boson) couples to both chirality eigenstates but in general with different strength, depending on the particle.