New Nuclear and Weak Physics in Big Bang Nucleosynthesis

Christel Smith
Arizona State University


I will discuss the current status of our understanding of primordial nucleosythesis in light of cosmic microwave background observations.  I will also discuss the comparison of the predicted primordial light element abundance yields to the observationally determined values.  In order to probe possible discrepancies between prediction and observation, I will present big bang nucleosynthesis (BBN) calculations which included new nuclear and weak physics.  I will also present some preliminary results using BBN calculations to constrain physics beyond the standard model.