Constraint on Heavy Element Production in Inhomogeneous Big-Bang Nucleosynthesis from the Light Element Observations

Figure 1

Illustration of the nucleosynthesis in the two-zone IBBN model with 𝑓_𝑣=10⁻⁶ and 𝑅=10⁶. The baryon-to-photon ratios in the high (a) and low (b) density regions are 𝜂_high=3.05×10⁻⁴ and 𝜂_low=3.05×10⁻¹⁰, respectively.

(a)

(b)