Beta Phase: Square45 is currently in beta testing. Expect some features or content to be incomplete or missing.
45

Weak Nuclear Force

Responsible for certain types of radioactive decay, mediating reactions involving changes in the neutron-to-proton ratio.
📜

The statement of the theorem

The weak interaction is described by the effective Lagrangian Lweak\mathcal{L}_{weak} involving the exchange of W±W^{\pm} and Z0Z^0 bosons. For a process like beta decay (n→p+e−+νˉen \to p + e^- + \bar{\nu}_e), the interaction Hamiltonian density Hint\mathcal{H}_{int} is derived from the coupling of the leptonic current JLJ_L and the hadronic current JHJ_H: \nHint=GF2JLμJHμ+h.c.\mathcal{H}_{int} = \frac{G_F}{\sqrt{2}} J_L^{\mu} J_{H}^{\mu} + \text{h.c.} \nWhere GFG_F is the Fermi constant, and JLJ_L and JHJ_H are the respective weak currents.