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Tell me about "weak force", also known as "weak interaction".
Weak force is very different from strong nuclear force. In their contents, weak and strong forces are almost complete opposites. Weak forces have a high-energy range but low strength (e.g., the interaction between electrons and neutrinos), while the opposite is true for strong interactions (e.g., protons).
Most of the particles that are involved in weak interactions cannot be directly observed. They must interact with other particles to be detected.
The weak force is responsible for the radioactive decay of unstable atomic nuclei. It also causes some kinds of particle transmutations in the interaction between high-energy cosmic rays and matter in Earth's atmosphere.
The weak force is a quantum mechanical interaction. It involves particles called W bosons and Z bosons which are the carriers of the force, as well as charged leptons such as electrons.
Weak force is much weaker than electromagnetic interactions. The latter can be described using the quantum field theory of strong forces, which are called 'strong nuclear interactions'.