In the framework of general relativity, gravity is described as the curvature of spacetime caused by mass and energy. According to this theory, the effects of gravity are not considered as a force in the traditional sense, but rather as the result of the geometry of spacetime.
On the other hand, the Standard Model of particle physics describes the fundamental forces of nature, such as electromagnetism, the strong nuclear force, and the weak nuclear force, in terms of exchange particles called gauge bosons. These forces are treated as distinct and separate interactions.
Efforts to incorporate gravity into the Standard Model are motivated by the desire to have a unified theory that encompasses all the fundamental forces, including gravity. This pursuit is often referred to as "quantum gravity" or "the theory of everything." The aim is to develop a theoretical framework that can describe both the quantum nature of particles and the curvature of spacetime in a consistent and unified manner.
However, the task of reconciling general relativity with the principles of quantum mechanics and incorporating gravity into the Standard Model remains a major challenge in theoretical physics. It is an active area of research, and various approaches, such as string theory, loop quantum gravity, and others, are being explored in the quest for a more complete theory of gravity that can be integrated with the other forces in the Standard Model.