Cosmic Rays during BBN as Origin of Lithium Problem

Details Cosmic Rays during BBN as Origin of Lithium Problem Cosmic Rays during BBN as Origin of Lithium Problem

2011-10-02

arxiv.org/abs/1110.0163v4

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

34 pages, 21 figures, one latex command line added (\pdfoutput=1)

Scientific paper

There may be non-thermal cosmic rays during big-bang nucleosynthesis (BBN) epoch (dubbed as BBNCRs). In this paper we investigated whether such BBNCRs can be the origin of Lithium problem or not. It can be expected that BBNCRs flux will be small in order to keep the success of standard BBN (SBBN). Our numerical results showed that the extra contributions from BBNCRs can account for the $^7$Li abundance successfully, while lift $^6$Li abundance an order of magnitude.

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