SUMMARY
The Standard Model of particle physics does not include gravity, as it is based on the gauge group ##U(1) \times SU(2) \times SU(3)##, which excludes gravitational interactions. The discussion highlights the incompatibility between classical theories of gravity and the Standard Model, emphasizing that gravity is traditionally considered too weak to influence particle physics calculations. Theories such as quantum gravity and string theory aim to reconcile gravity with quantum mechanics, but no definitive particle physics calculation involving gravity has been established. The consensus is that while gravity is a fundamental force, its integration into the Standard Model remains an open question.
PREREQUISITES
- Understanding of the Standard Model of Particle Physics
- Familiarity with Quantum Field Theory (QFT)
- Knowledge of General Relativity (GR)
- Basic concepts of gauge theories and particle interactions
NEXT STEPS
- Research the implications of Quantum Gravity theories
- Study the role of string theory in unifying gravity with particle physics
- Explore the Einstein-Hilbert action and its significance in General Relativity
- Investigate the concept of effective field theories in modern physics
USEFUL FOR
Physicists, researchers in theoretical physics, and students interested in the intersection of quantum mechanics and gravity.