👉 In physics, a boson is an entity that behaves like a particle but has no mass. In other words, it does not have any mass and therefore cannot be seen or felt in the same way as electrons, protons, neutrons, etc. Instead, its properties are determined by its quantum state, which can be described by wave functions. A boson is often used to describe particles that exhibit a certain type of behavior when subjected to a particular interaction, such as scattering from other particles