Testing primordial abundances with sterile neutrinos

Journal Article · Tue Apr 15 00:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.77.045806· OSTI ID:21189945

Civitarese, O; Mosquera, M E ^[1]

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1. Department of Physics, University of La Plata c.c. 67 1900, La Plata (Argentina) and Faculty of Astronomy and Geophysics, University of La Plata Paseo del Bosque s.n., La Plata (Argentina)

The mixing between sterile and active neutrinos is taken into account in the calculation of Big Bang Nucleosynthesis. The abundances of primordial elements, like D, {sup 3}He, {sup 4}He, and {sup 7}Li, are calculated by including sterile neutrinos and by using finite chemical potentials. It is found that the resulting theoretical abundances are consistent with Wilkinson Microwave Anisotropy Probe (WMAP) data on baryonic densities, and with limits of Liquid Scintillator Neutrino Detector (LSND) on mixing angles, only if {sup 7}Li is excluded from the statistical analysis of theoretical and experimental results.

• OSTI ID: 21189945
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 77; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANISOTROPY
BARYONS
DENSITY
HELIUM 3
HELIUM 4
LIQUID SCINTILLATORS
LITHIUM 7
MIXING
NEUTRINOS
NUCLEOSYNTHESIS
SIMULATION
WEINBERG ANGLE