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Title: Cold Neutrons Trapped in External Fields

Abstract

The properties of inhomogeneous neutron matter are crucial to the physics of neutron-rich nuclei and the crust of neutron stars. Advances in computational techniques now allow us to accurately determine the binding energies and densities of many neutrons interacting via realistic microscopic interactions and confined in external fields. We perform calculations for different external fields and across several shells to place important constraints on inhomogeneous neutron matter, and hence the large isospin limit of the nuclear energy density functionals that are used to predict properties of heavy nuclei and neutron star crusts. We find important differences between microscopic calculations and current density functionals; in particular, the isovector gradient terms are significantly more repulsive than in traditional models, and the spin-orbit and pairing forces are comparatively weaker.

Authors:
;  [1];  [2]
  1. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  2. Physics Division, Argonne National Laboratory, Argonne, Illinois 61801 (United States)
Publication Date:
OSTI Identifier:
21532225
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 106; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevLett.106.012501; (c) 2011 American Institute of Physics; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BINDING ENERGY; COLD NEUTRONS; CURRENT DENSITY; ISOSPIN; ISOVECTORS; NEUTRON STARS; NEUTRON-NEUTRON INTERACTIONS; NEUTRON-RICH ISOTOPES; ORBITS; SPIN; TRAPPING; ANGULAR MOMENTUM; BARYON-BARYON INTERACTIONS; BARYONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; ELEMENTARY PARTICLES; ENERGY; FERMIONS; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; ISOTOPES; NEUTRONS; NUCLEON-NUCLEON INTERACTIONS; NUCLEONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; RADIOISOTOPES; STARS; TENSORS; VECTORS

Citation Formats

Gandolfi, S, Carlson, J, and Pieper, Steven C. Cold Neutrons Trapped in External Fields. United States: N. p., 2011. Web. doi:10.1103/PHYSREVLETT.106.012501.
Gandolfi, S, Carlson, J, & Pieper, Steven C. Cold Neutrons Trapped in External Fields. United States. https://doi.org/10.1103/PHYSREVLETT.106.012501
Gandolfi, S, Carlson, J, and Pieper, Steven C. 2011. "Cold Neutrons Trapped in External Fields". United States. https://doi.org/10.1103/PHYSREVLETT.106.012501.
@article{osti_21532225,
title = {Cold Neutrons Trapped in External Fields},
author = {Gandolfi, S and Carlson, J and Pieper, Steven C},
abstractNote = {The properties of inhomogeneous neutron matter are crucial to the physics of neutron-rich nuclei and the crust of neutron stars. Advances in computational techniques now allow us to accurately determine the binding energies and densities of many neutrons interacting via realistic microscopic interactions and confined in external fields. We perform calculations for different external fields and across several shells to place important constraints on inhomogeneous neutron matter, and hence the large isospin limit of the nuclear energy density functionals that are used to predict properties of heavy nuclei and neutron star crusts. We find important differences between microscopic calculations and current density functionals; in particular, the isovector gradient terms are significantly more repulsive than in traditional models, and the spin-orbit and pairing forces are comparatively weaker.},
doi = {10.1103/PHYSREVLETT.106.012501},
url = {https://www.osti.gov/biblio/21532225}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 1,
volume = 106,
place = {United States},
year = {Fri Jan 07 00:00:00 EST 2011},
month = {Fri Jan 07 00:00:00 EST 2011}
}