Standard Model (Cosmology)

This refers to the Cosmological “Standard Model”, i.e. the ΛCDM. This is not the same as the Standard Model of Particle Physics

Lambda-CDM #

The lambda-cdm or, lambda cold-dark-matter, is a three-parameter description of the Big Bang Cosmological model parametrized by:

1. the Cosmological Constant Λ
2. dark matter
3. normal matter

Of the cosmological models, this presents the simplest one in terms of describing the universe as we see it observationally. Specifically, it succintly explains:

1. the CMB (Cosmic Microwave Background)
2. galaxy distribution
3. the abundancies of H, He, and Li
4. accelerated expansion