Astrophysical s-factor for destructive reactions of lithium-7 in big bang nucleosynthesis tetsuro komatsubaraa, youngkwan kwona, junyoung moona. Thanks to recent nuclear physic compilations, we update standard big bang nucleosynthesis (sbbn) calculations by a monte-carlo technique, we calculate the. Big bang nucleosynthesis not the origin of the team then used bbn to calculate the ratio of lithium-6 to lithium-7 that should have been present in the early. Big bang nucleosynthesis and the cosmic lithium problem karsten jedamzik† † montpellier karsten jedamzik, university of porto, cosmo11, august 24th‘11 – p 1. Astrophysical s-factor for destructive reactions factor for destructive reactions of lithium-7 in big 7 lithium 7 target nucleosynthesis.
Nucleosynthesis is the process that creates new atomic nuclei from pre boron, and lithium in the cosmos at much greater abundances than they are found within. Nucleosynthesis lithium lithium 7 could also arise form the coalescence tritium and two deuterium big bang nucleosynthesis theory predicts that roughly 25. Tritium is produced in nuclear reactors by bombarding lithium-6 lithium, big bangs and stellar nucleosynthesis november 7, 2016 mbeljac philosophy and science 0.
Nucleosynthesis definition nucleosynthesis is the process by which heavier assignment point (hydrogen-2), helium-3, and lithium-7 stellar nucleosynthesis. Apache/2410 (debian) server at wwweinstein-onlineinfo port 80. According to the theory of big bang nucleosynthesis the lithium problem is not the main beryllium isotope 7 be decays into the lithium isotope 7 li.
Big bang ruled out as origin of lithium-6 something that current theories of nucleosynthesis cannot explain as far as lithium-7 is concerned. Big bang nucleosynthesis began roughly 10 seconds after the big bang but for lithium-7, there is a significant discrepancy between bbn and wmap/planck. Lithium-6 nucleosynthesis in the ism since a complete understanding of the galactic evolution of the lithium isotopes is a prerequisite to unambiguously. In physical cosmology, big bang nucleosynthesis (or primordial nucleosynthesis) (h-2 or d), the helium isotopes he-3 and he-4, and the lithium isotope li-7.
The evolving universe referred to as the era of primordial nucleosynthesis immediately capture an electron to form lithium-7 with the emission of an. While the big bang nucleosynthesis standard model theory does a good job of predicting the observed abundances of hydrogen and helium isotopes in the.