Speaker
Suqing Hou
(Institute of Modern Physics, CAS)
Description
The disagreement of the predicted abundance of primordial 7Li with the observed abundance is a longstanding problem in Big Bang Nucleosynthesis theory[1, 2]. Solutions to this problem using conventional astrophysics and nuclear physics have not been successful over the past few decades[3]. We have investigated the impact on BBN predictions of adopting a generalized distribution called Tsallis distribution to describe the velocities of nucleons. We 1nd excellent agreement between predicted and observed primordial abundances of D, 4He, and 7Li for 1.069q1.082, suggesting a possible new solution to the cosmological lithium problem[4].
Primary author
Suqing Hou
(Institute of Modern Physics, CAS)
