The BBN/CMB connection: Post Planck - Prof. Keith Olive
Channel: IFUNAM
Date: 2023-11-11

Título: The BBN/CMB connection: Post Planck.
𝗣𝗼𝗻𝗲𝗻𝘁𝗲: Prof. Keith Olive, W. I. Fine Theoretical Physics Institute, University of Minnesota.
𝗥𝗲𝘀𝘂𝗺𝗲𝗻: The BBN/CMB connection: Post Planck

Big bang nucleosynthesis provides a window to the physics of the
universe just seconds after the big bang. Its predictions of the light
element abundances of D, 4He, and 7Li can be compared with
observational determinations. Over the last several years, significant
progress has been made on several fronts. First and foremost, results
from Planck measurements of the microwave background have provided
precise values for the baryon density of the universe, a key input used
in abundance predictions. There are recent nuclear cross section data
which improve BBN predictions. We now have good precision on Deuterium
abundance determinations, and a path towards significant improvements in
Helium determinations.  Finally, there is new understanding in the
so-called Lithium problem. How one applies BBN to constrain physics
beyond the Standard Model is also discussed.

𝗙𝗲𝗰𝗵𝗮: 10 de noviembre de 2023