Cosmological Lithium Problems

Abstract

We briefly describe the cosmological lithium problems followed by a summary of our recent theoretical work on the magnitude of the effects of electron screening, the possible existence of dark matter parallel universes and the use of non-extensive (Tsallis) statistics during big bang nucleosynthesis. Solutions within nuclear physics are also discussed and recent measurements of cross-sections based on indirect experimental techniques are summarized.

arXiv comment9 pages, 5 figures, IX European Summer School on Experimental Nuclear Astrophysics, St. Tecla (Catania), Italy, 17-24/Sept/2017

References in corpus (27)

• Planck 2015 results. XIII. Cosmological parameters
• Particle Dark Matter: Evidence, Candidates and Constraints
• Lithium isotopic abundances in metal-poor halo stars
• Asymmetric Inflationary Reheating and the Nature of Mirror Universe
• Standard Big-Bang Nucleosynthesis up to CNO with an improved extended nuclear network
• Lithium Abundances of Extremely Metal-Poor Turn-off Stars
• Planck-Scale Physics and Neutrino Masses
• A New Approach to Systematic Uncertainties and Self-Consistency in Helium Abundance Determinations
• The moment of truth for WIMP Dark Matter
• The lithium isotopic ratio in very metal-poor stars
• Frontiers in Nuclear Astrophysics
• The 7Be(n,alpha)4He reaction and the Cosmological Lithium Problem: measurement of the cross section in a wide energy range at n_TOF (CERN)
• RADCAP: a potential model tool for direct capture reactions
• External Inversion, Internal Inversion, and Reflection Invariance
• Big Bang nucleosynthesis revisited via Trojan Horse Method measurements
• Non-extensive Statistics Solution to the Cosmological Lithium Problem
• The electron screening puzzle and nuclear clustering
• A revised thermonuclear rate of ${}^7$Be($n$,$\alpha$)${}^4$He relevant to Big-Bang nucleosynthesis
• Higher D or Li: Probes of Physics beyond the Standard Model
• Extension of thermonuclear functions through the pathway model including Maxwell-Boltzmann and Tsallis distributions
• Electron screening and its effects on Big-Bang nucleosynthesis
• Big Bang nucleosynthesis with a non-Maxwellian distribution
• Nucleosynthesis Predictions and High-Precision Deuterium Measurements
• Nuclear astrophysical plasmas: ion distribution functions and fusion rates
• Helioseismology can test the Maxwell-Boltzmann distribution
• Cosmological and Particle Physics Constraints on a New Non-Abelian SU(3) Gauge Model for Ordinary/Dark Matter Interaction
• Reply to comments on `Structure effects in the ${}^{15}$N($n,\gamma$)${}^{16}$N radiative capture reaction from the Coulomb dissociation of ${}^{16}$N'