The known fundamental interactions are the strong, electromagnetic, weak and gravitational interactions. These interactions explain all observed physical processes but do not explain particle masses. Any force between two objects is due to one or another of these interactions. All known particle decays can be understood in terms of these strong, electromagnetic or weak interactions.
(physics) the transfer of energy between elementary particles or between an elementary particle and a field or between fields; mediated by gauge bosons
In the Standard Model the fundamental interactions are the strong, electromagnetic, weak and gravitational interactions. There is at least one more fundamental interaction in the theory that is responsible for fundamental particle masses. Five interaction types are all that are needed to explain all observed physical phenomena.
In the Standard Model the fundamental interactions are the strong, electromagnetic, weak, and gravitational interactions. Four interaction types are all that are needed to explain all observed physical phenomena. The theory proposes at least one more fundamental interaction that is responsible for fundamental particle masses. [ ] [ Close Glossary
A fundamental interaction is a mechanism by which particles interact with each other, and which cannot be explained by another more fundamental interaction. Every observed physical phenomenon, from galaxies colliding with each other to quarks jiggling around inside a proton, can thus be explained by these interactions. Because of their fundamental importance, understanding of these interactions has occupied the attention of physicists for over half a century and continues to do so.