# Precision Early Universe Thermodynamics made simple: $N_{\rm eff}$ and Neutrino Decoupling in the Standard Model and beyond

27 May 2020 Escudero Miguel

Precision measurements of the number of effective relativistic neutrino species and the primordial element abundances require accurate theoretical predictions for early Universe observables in the Standard Model and beyond. Given the complexity of accurately modelling the thermal history of the early Universe, in this work, we extend a previous method presented by the author to obtain simple, fast and accurate early Universe thermodynamics... (read more)

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# Categories

• HIGH ENERGY PHYSICS - PHENOMENOLOGY
• COSMOLOGY AND NONGALACTIC ASTROPHYSICS