Which of the fundamental interactions governs the following decay? π⁺ → e⁺ + v_e? A) strong nuclear B) electromagnetic C) gravitational D) weak nuclear

Question

Quizplus · Accepted Answer

This decay involves the transformation of a pion (made up of quarks) into an electron and a neutrino. This process violates conservation of lepton number and requires the weak nuclear force to occur. The strong nuclear force binds quarks together to form protons and neutrons, and the electromagnetic force governs interactions between charged particles, but neither of these interactions are involved in this particular decay. Gravitational force is negligible at the atomic scale and has no role in particle decay.

Which of the Fundamental Interactions Governs the Following Decay? π+

Which of the Fundamental Interactions Governs the Following Decay? π⁺