How to get less helium and more neutrinos from BBN

Details How to get less helium and more neutrinos from BBN How to get less helium and more neutrinos from BBN

2000-11-28

arxiv.org/abs/astro-ph/0011532v1

Int.J.Mod.Phys. A16S1C (2001) 1025-1027

Astronomy and Astrophysics

Astrophysics

2 pages, conference proceeding of DPF-2000

Scientific paper

10.1142/S0217751X01008783

We discuss BBN in the presence of a non-minimally coupled quintessence model.
In some of these models, the gravitational constant and cosmic expansion rate
are smaller than standard model predicts. The Helium abundance is then smaller,
possibly resolve the marginal disagreement between theory and observation.
Furthermore, the constraint on neutrino species may also be relaxed.

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