Anomalous couplings refer to deviations from the standard model of particle physics, which describes the interactions of subatomic particles. These couplings occur when the interactions between particles differ from what is predicted by the standard model, suggesting the presence of new physics beyond the known theories. Researchers study anomalous couplings to understand the fundamental forces and particles that make up the universe, as well as to search for evidence of new particles or phenomena that could provide insights into the nature of dark matter, dark energy, or the origins of the universe. By measuring and studying these anomalous couplings, scientists hope to uncover new physics and potentially revolutionize our understanding of the universe.