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Title: Chiral Three-Nucleon Interactions in Light Nuclei, Neutron-α Scattering, and Neutron Matter

Journal Article · · Physical Review Letters
 [1];  [2];  [1];  [1];  [3];  [4];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division
  2. Technische Univ. Darmstadt (Germany). Inst. fur Kernphysik; GSI-Darmstadt (Germany). ExtreMe Matter Inst. (EMMI)
  3. Univ. of Guelph, ON (Canada). Dept. of Physics
  4. Arizona State Univ., Tempe, AZ (United States). Dept. of Physics

Here we present quantum Monte Carlo calculations of light nuclei, neutron- scattering, and neutron matter using local two- and three-nucleon (3N) interactions derived from chiral e effective fi eld theory up to next-to-next-to-leading order (N2LO). The two undetermined 3N low-energy couplings are fi t to the 4He binding energy and, for the first time, to the spin-orbit splitting in the neutron- P-wave phase shifts. Furthermore, we investigate different choices of local 3N-operator structures and find that chiral interactions at N2LO are able to simultaneously reproduce the properties of A = 3; 4; 5 systems and of neutron matter, in contrast to commonly used phenomenological 3N interactions.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
NSF; Natural Sciences and Engineering Research Council of Canada; USDOE
Grant/Contract Number:
AC02-05CH11231; AC52-06NA25396
OSTI ID:
1334120
Report Number(s):
LA-UR--15-27045
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 6 Vol. 116; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Emergent properties of nuclei from ab initio coupled-cluster calculations text January 2016
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Formation of Selfbound States in a One-Dimensional Nuclear Model -- A Renormalization Group based Density Functional Study text January 2016
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Relativistic Brueckner-Hartree-Fock theory for neutron drops text January 2018
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Single- and two-nucleon momentum distributions for local chiral interactions text January 2018
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