Next-Generation Ab Initio Symmetry-Adapted No-Core Shell Model and Its Impact on Nucleosynthesis

Jerry Draayer, Louisiana State University

Usage Details

Umit Catalyurek, Pieter Maris, Erik Saule, Masha Sosonkina, Jerry Draayer, Tomas Dytrych, Kristina Launey, James Vary, Daniel Langr, Tomas Oberhuber, Robert Baker

Our recently developed next-generation symmetry-adapted no-core shell model (SA-NCSM), which builds on first principles and symmetries of nuclear dynamics, targets ab initio descriptions of intermediate-mass nuclei, including short-lived nuclei not yet accessible to experiment but key to understanding astrophysical processes. While the implementation of the SA-NCSM for massively parallel computer systems achieves good load-balancing and scales beyond tens of thousands of processors, its computational complexity requires the Blue Waters petascale resources. This makes the SA-NCSM code ideal for runs on the Blue Waters system, while addressing long-standing challenges of importance to nuclear theory and experiment, as well as to astrophysics.

http://www.phys.lsu.edu/newwebsite/people/draayer.html