The discovery of the Higgs boson at the Large Hadron Collider (LHC) in 2012 was a significant milestone in particle physics. The Higgs boson is a particle predicted by the Standard Model, which is a well-established theoretical framework that describes the fundamental particles and their interactions. Its discovery provided experimental confirmation of a key component of the Standard Model.
However, it is important to note that the discovery of the Higgs boson does not mean that the entire Standard Model is "confirmed" or complete. The Standard Model successfully explains and predicts the behavior of three of the four fundamental forces: electromagnetism, the weak nuclear force, and the strong nuclear force. But it does not incorporate gravity.
The missing piece in the Standard Model is the inclusion of gravity, which is described by Albert Einstein's theory of general relativity. General relativity and the Standard Model are currently two separate and distinct theories that have not been fully unified.
The hypothetical particle associated with the gravitational force is called the graviton. The graviton is a theoretical particle that is predicted in certain models of quantum gravity, which seek to merge general relativity with quantum mechanics. However, the graviton has not been experimentally observed or confirmed yet.
The search for the graviton and the development of a consistent theory that combines gravity with the other fundamental forces is an active area of research in theoretical physics. Many physicists are exploring various approaches, such as string theory, loop quantum gravity, and other quantum gravity frameworks, in an attempt to develop a more complete theory that encompasses all the fundamental forces, including gravity.
So, while the discovery of the Higgs boson was a significant achievement, it does not signify the complete confirmation of the entire Standard Model, as the incorporation of gravity and the discovery of the graviton are still open questions in modern physics.