We explore modifications of the standard primordial nucleosynthesis

model, namely with additional decaying particles and with additional

neutrino oscillations. We calculate the production of the primordial He-4

in such models. Cosmological constraints on the decaying particle parameters

and the oscillations parameters are derived.

 

 

 

Kirilova D., Baryon Density in alternative BBN, AATr v.22, pp. 425--428, 2003.

 

Kirilova D., Primordial He-4 Overproduction due to neutrino oscillations,

    AATr, v.22, pp. 421-424, 2003.

 

Kirilova D.,Overproduction of helium-4 in the presence of neutrino

    oscillations, astro-ph/0109105, Astropart. Phys. v.19, pp. 409-417, 2003

    astro-ph/0109105

 

B. Klecker et al. (20), Galactic Abundances: Report of Working

    Group 3, in proc. Joint SOHO-ACE Workshop "Solar and Galactic

    Composition", Bern, 6-9 March, 2001: AIP CP 598 "Solar and Galactic

    Composition" ed. Wimmer-Schweingruber R., American Institute of

    Physics, Melville, New York,  2001, p.207-220. 

 

H. Busemann et al., Applications of Abundance Data and Requirements for

    Cosmochemical Modeling, in AIP Conf.Proc. 2001 of  Joint SOHO-ACE Workshop

   "Solar and Galactic  Composition", Bern, 6-9 March, 2001: CP598 "Solar and Galactic

    Composition" ed. Wimmer-Schweingruber R., American Institute of

    Physics 2001, p.357-379

 

Kirilova D. P., Primordially Produced Helium-4 in the presence of

  neutrino oscillations, published in proc. Joint SOHO-ACE Workshop

  "Solar and Galactic Composition", Bern, 6-9 March, 2001, p.405-410.

 

Kirilova D., Chizhov M., Big Bang Nucleosynthesis and Cosmological

  Constraints on Neutrino Oscillations Parameters, proc.Int.Workshop

  "Hot Points in Astrophysics" at JINR, Dubna, Russia, 22-26 August, 2000, p.56-66.

 

Chizhov M., Kirilova D., Nonequilibrium Neutrino Oscillations  and

Primordial Helium Production, Proc. of NEUTRINO 96, Helsinki, 1996,

p.478-484.

 

Chizhov M., Kirilova D., Nonequilibrium Neutrino Oscillations

 and Primordial Production of He-4, Phys. Lett. B393, 1997, p.375-382.

 

Dolgov A.,Kirilova D.,Nonequilibrium Decays of Light Particles

  and Primordial Nucleosynthesis, Int.J.Mod.Phys.A3, p.267-277, 1988;

  Preprint JINR E2-87-32, Dubna, 1987