Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session G05: Short-Range Correlations in Few-Body Systems
8:30 AM–10:18 AM,
Sunday, April 14, 2019
Sheraton Room: Governor's Square 14
Sponsoring Units: GFB DNP
Chair: Or Hen, Massachusetts Institute of Technology
Abstract: G05.00002 : Quantum Monte Carlo calculations of light nuclei using local chiral interactions*
9:06 AM–9:42 AM
View Presentation Abstract
(MSU-FRIB and LANL)
(MSU-FRIB and LANL)
Predicting the emergence of nuclear properties and structure from first principles is a formidable task. A fundamental question is whether it is possible to describe nuclei and their global properties, e.g., binding energies, radii, transitions, and reactions, from microscopic nuclear Hamiltonians constructed to reproduce only few-body observables, while simultaneously predicting properties of matter, including the equation of state and the properties of neutron stars. Despite advanced efforts, definitive answers are not available yet.
In this talk, I will approach the problem by presenting quantum Monte Carlo results for nuclei up to A=16, obtained by employing local chiral interactions. Such interactions include consistent two- and three-nucleon potentials up to next-to-next-to-leading-order, and they have been fit to few-body observables probing the physics of light nuclei, with particular attention to T=3/2 physics. Our results show that such local chiral interactions give a very good description of the ground-state properties of nuclei (at least) up to 16O, while providing an equation of state of pure neutron matter compatible with astrophysical observations of neutron stars. Single- and two-nucleon momentum distributions and derived quantities have been used to explore short-range correlation effects, showing interesting connections with information extracted from lepton scattering experiments on nuclei.
*This work was supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-SC0013617, and by the NUCLEI SciDAC program. Computational resources have been provided by Los Alamos Open Supercomputing via the Institutional Computing (IC) program and by the National Energy Research Scientific Computing Center (NERSC), which is supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-05CH11231.
The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.
1 Physics Ellipse, College Park, MD 20740-3844
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700