Single-nucleon spectroscopic overlaps from the ab initio symmetry-adapted no-core shell model

ORAL

Abstract

Ab initio symmetry-adapted no-core shell model (SA-NCSM) calculations of single-nucleon spectroscopic observables are a first step to description of low-energy nuclear reactions and can be used as input for analyzing existing or future experimental data as well as for fitting ab-initio-based optical potentials. The SA-NCSM utilizes emergent symmetries in nuclei to reduce the dimensionality of the model space. This, in turn, allows one to reproduce the low-energy nuclear dynamics with only a small fraction of the model space, and hence making solutions to heavier nuclei and ultralarge model spaces feasible. This work discusses calculations of spectroscopic overlap functions, spectroscopic factors and asymptotic normalization coefficients (ANC’s) for Li isotopes.

*Supported by the U.S. NSF (PHY-1913728), SURA and National Nuclear Security Administration through the Center for Excellence in Nuclear Training and University Based Research (CENTAUR) under grant number #DE-NA0003841. Prepared by LLNL under Contract DE-AC52-07NA27344.This work benefitted from computing resources provided by LSU (www.hpc.lsu.edu), the National Energy Research Scientific Computing Center (NERSC) and Frontera computing project at TACC.

Presenters

  • Grigor H Sargsyan

    • Lawrence Livermore National Laboratory

Authors

  • Grigor H Sargsyan

    • Lawrence Livermore National Laboratory
  • Kristina D Launey

    • Louisiana State University
  • Rachel Malecek

    • Louisiana State University
  • Scott T Marley

    • Louisiana State University
  • Tomas Dytrych

    • Nuclear Physics Institute of the Czech Academy of Sciences
  • Jerry P Draayer

    • Louisiana State University