Gravitons are hypothetical particles that are postulated in certain quantum theories of gravity, such as some versions of string theory. According to these theories, gravitons would be the carriers of the gravitational force, similar to how photons are the carriers of the electromagnetic force.
In the framework of quantum field theory, particles can possess momentum and kinetic energy. Momentum is a fundamental property of particles, and it characterizes their motion. Kinetic energy, on the other hand, is associated with the energy of a particle due to its motion.
If gravitons exist and are described within the framework of quantum field theory, they would also possess momentum and energy. These properties would determine how gravitons interact with other particles and how they transfer gravitational forces.
However, it's important to note that gravitons are hypothetical particles, and their existence has not been confirmed by experimental evidence at this time. The search for gravitons is an active area of research, and scientists are working to develop experimental methods that may detect or provide evidence for their existence.