What is the relationship between particle physics and cosmology?

There is an intimate relationship between the areas of particle and cosmology physics, an example of a long number of physicists working at the same time: Albert Einstein, Stephen Hawking, Kip Thorne and many others. Cosmology is the study of the universe and its structure, while the physics of the particles is the study of basic particles, such as quarks and photons, the smallest known objects. Although initially they may seem as unconnected as anything can be, cosmology and particle physics are actually closely connected. For example, at a huge distance of the universe, only one of the four natural forces has a real influence: gravity. Although stars and galaxies are very far and many times larger than ourselves, we have a remarkably accurate picture of how they work, derived from the basic physical laws that control their particles,

Cosmology domain that is most associated with particle physics is the study of a large bang, a gigantic explosion that created inThe matter in space and spatially, whose universe itself is composed. The Big Bang began as a point of almost endless density and zero volume: singularity. Then it quickly expanded to the size of the atomic core, where the physics of the particles come into the game. In order to understand how the earliest moments of the Big Bang influenced the universe, as it is today, we have to use what we know about the physics of particles to create credible cosmological models.

One of the motivations for creating increasingly strong particle accelerators is to perform experiments that simulate physical circumstances as soon as possible in History from space when everything was very compact and hot. Cosmologists must be well familiar with particle physics to contribute significantly to the field.

Another key to understanding the relationship between particle physics and cosmology is to look at the study of black holes. The physical properties of black holes are relevant to the long -term future of the universe. Black holes are collapsed stars with such a huge gravity, ŽE Neither the light can escape their grip. It was assumed for a moment that the black holes did not radiate any radiation and would be eternal, paradox for physics. However, Stephen Hawking was theorized, based on the knowledge of particle physics, that black holes actually radiate radiation, which was then dubbed with hawking radiation.

particles physics are also very relevant to the investigation of dark matter, invisible matter, which is known for its gravitational effect on visible matter and dark energy, a mysterious processes that permeates the universe and cause its expansion to accelerate. These are central questions in modern cosmology.