##  [Nuclear Reaction Theory in the Precision Era: Probing New Physics in the Early Universe](/project-highlights/nuclear-reaction-theory) 

## Konstantinos Kravvaris | 20-LW-046  
 

### Executive Summary

We are developing a framework based on uncertainty quantification to evaluate the cross section of the beryllium-7/lithium-7 charge-exchange reaction. Successful results will resolve the present discrepancy between experimental data sets for this cross section and establish a new gold standard for the evaluation of low-energy light-nuclei reactions that are critical for probing new physics in the early universe and that have applications to stockpile stewardship.

### Publications, Presentations, and Patents

Kravvaris, K., et al. 2020a. "Ab Initio Calculations of Alpha-Clustering and Alpha-Induced Reactions." Vth Topical Workshop on Modern Aspects in Nuclear Structure, Bormio, Italy, February 2020. LLNL-PRES-806181

⸻ 2020b. "Uncertainty Quantification in Ab Initio Nucleon-Alpha Scattering." American Physical Society Meeting (online), April 2020. LLNL-PRES-808818