Nucleosynthesis constraints on the number of neutrino flavors

Details Nucleosynthesis constraints on the number of neutrino flavors Nucleosynthesis constraints on the number of neutrino flavors

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989nyasa.578..138s&link_type=abstract

(NSF and DOE, International Symposium on the Fourth Family of Quarks and Leptons, 2nd, Santa Monica, CA, Feb. 23-25, 1989) New Y

Astronomy and Astrophysics

Astrophysics

2

Flavor (Particle Physics), Helium, Neutrinos, Nuclear Astrophysics, Nuclear Fusion, Big Bang Cosmology, Elementary Particle Interactions, Mass To Light Ratios, Weak Energy Interactions

Scientific paper

The predictions of primordial nucleosynthesis models within the context of the standard hot big bang model are reviewed with particular emphasis given to the predicted abundance of He-4. The observed abundances of the light elements D, He-3, He-4, and Li-7 are surveyed and bounds to the primordial abundances are inferred. Theory is compared with observations, and constraints are derived on the number of kinds of light, weakly interacting particles which may exist.

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