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Big-bang Nucleosynthesis Constraints on Dark-matter Sectors Revisited by Bertulani, C. A.; Challa, V.; He, J. J.; Hou, S. Q.; Kumar, Ravinder is a scholarly article available to read on EtoBox.

What is Big-bang Nucleosynthesis Constraints on Dark-matter Sectors Revisited about?

We extend previous studies of big bang nucleosynthesis, with the assumption that ordinary matter and dark matter sectors are entangled through the number of degrees of freedom entering the Friedmann equations. This conjecture allows us to find a relation between the temperatures of the weakly interacting matter and dark-matter sectors. The constraints imposed by observations are studied by comparison with calculations of big bang nucleosynthesis for the abundance of light elements. It is found that these constraints are compatible with cold dark matter and a wide range number of dark sectors.

Author

Bertulani, C. A.; Challa, V.; He, J. J.; Hou, S. Q.; Kumar, Ravinder

Published

2017

Language

EN