BIG BANG NUCLEOSYNTHESIS WITH A NON-MAXWELLIAN DISTRIBUTION

Journal Article · Wed Apr 10 00:00:00 EDT 2013 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/767/1/67· OSTI ID:22167417

Bertulani, C. A. ^[1]; Fuqua, J. ^[2]; Hussein, M. S. ^[3]

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1. GSI Helmholtzzentrum fuer Schwerionenforschung, D-64291 Darmstadt (Germany)
2. Texas A and M University-Commerce, Commerce, TX 75429-3011 (United States)
3. Instituto de Estudos Avancados, Universidade de Sao Paulo, C.P. 72.012, 05508-970 Sao Paulo (Brazil)

The abundances of light elements based on the big bang nucleosynthesis model are calculated using the Tsallis non-extensive statistics. The impact of the variation of the non-extensive parameter q from the unity value is compared to observations and to the abundance yields from the standard big bang model. We find large differences between the reaction rates and the abundance of light elements calculated with the extensive and the non-extensive statistics. We found that the observations are consistent with a non-extensive parameter q = 1{sub -} {sub 0.12}{sup +0.05}, indicating that a large deviation from the Boltzmann-Gibbs statistics (q = 1) is highly unlikely.

• OSTI ID: 22167417
• Journal Information: Astrophysical Journal, Vol. 767, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ABUNDANCE
BOLTZMANN STATISTICS
COSMOLOGICAL MODELS
DISTRIBUTION
NUCLEOSYNTHESIS
REACTION KINETICS