Bariónico

Bariónico is a term used in physics to describe matter composed of baryons. Baryons are composite subatomic particles made up of three quarks, or of a quark and an antiquark in the case of antibaryons. The most common examples of baryons are protons and neutrons, which form the nucleus of atoms. Therefore, ordinary matter, the stuff we encounter in everyday life, is predominantly baryonic matter. This contrasts with other forms of matter such as dark matter and dark energy, whose compositions are not yet fully understood but are believed to be non-baryonic.

The abundance of baryonic matter in the universe is a key parameter in cosmology. Scientists study the cosmic microwave background radiation and Big Bang nucleosynthesis to estimate the proportion of baryonic matter relative to other components of the universe. The observed abundance of light elements like hydrogen and helium, formed during the early universe, provides strong evidence for the standard cosmological model, which includes a specific amount of baryonic matter. While protons and neutrons are the most familiar baryons, other baryons like the lambda, sigma, and omega particles also exist, though they are typically unstable and decay quickly. The study of baryonic matter is fundamental to understanding the structure and evolution of the universe.