Is the Big Bang really obsolete? If it is obsolete, what is the new theory? The experiment that was tested in the Swiss laboratory is called LHC, so what will happen? If the Big Bang is true, where did those two particles come from when they collided?
It would be a good idea to study general relativity, https://arxiv.org/abs/gr-qc/9712019 and particle physics, https://arxiv.org/abs/2306.08097. The LHC is a collider, located at CERN, an international laboratory, https://home.cern/science/accelerators/large-hadron-collider.
To understand the origin and evolution of the universe, the Big Bang theory proposes that everything began from an incredibly hot and dense state (extremely energetic state), and has been expanding and cooling ever since.
Particle physics helps us understand the behavior of matter and energy under such extreme conditions.
It's believed that the very early universe contained the fundamental particles in a soup-like state.
As the universe expanded and cooled, the energy levels dropped, allowing for the formation of the particles we know today.
The Big Bang theory proposes exotic phenomena like inflation (a period of rapid expansion) and dark matter (invisible matter composing most of the universe's mass). Particle physics experiments (LHC among these experiments) are actively searching for evidence of these aspects that go beyond the Standard Model. The Standard Model theory describes
the fundamental particles and forces that make up everything we observe.
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