skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Sensitivities and correlations of nuclear structure observables emerging from chiral interactions

Authors:
;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1275979
Grant/Contract Number:
AC02-05CH11231
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 94; Journal Issue: 1; Related Information: CHORUS Timestamp: 2016-07-29 18:08:42; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Calci, Angelo, and Roth, Robert. Sensitivities and correlations of nuclear structure observables emerging from chiral interactions. United States: N. p., 2016. Web. doi:10.1103/PhysRevC.94.014322.
Calci, Angelo, & Roth, Robert. Sensitivities and correlations of nuclear structure observables emerging from chiral interactions. United States. doi:10.1103/PhysRevC.94.014322.
Calci, Angelo, and Roth, Robert. 2016. "Sensitivities and correlations of nuclear structure observables emerging from chiral interactions". United States. doi:10.1103/PhysRevC.94.014322.
@article{osti_1275979,
title = {Sensitivities and correlations of nuclear structure observables emerging from chiral interactions},
author = {Calci, Angelo and Roth, Robert},
abstractNote = {},
doi = {10.1103/PhysRevC.94.014322},
journal = {Physical Review C},
number = 1,
volume = 94,
place = {United States},
year = 2016,
month = 7
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevC.94.014322

Citation Metrics:
Cited by: 3works
Citation information provided by
Web of Science

Save / Share:
  • Understanding sources of uncertainty in aerosol direct radiative forcing (DRF), the difference in a given radiative flux component with and without aerosol, is essential to quantifying changes in Earth’s radiation budget. We examine the uncertainty in DRF due to measurement uncertainty in the quantities on which it depends: aerosol optical depth, single scattering albedo, asymmetry parameter, solar geometry, and surface albedo. Direct radiative forcing at the top of the atmosphere and at the surface as well as sensitivities, the changes in DRF in response to unit changes in individual aerosol or surface properties, are calculated at three locations representing distinctmore » aerosol types and radiative environments. The uncertainty in DRF associated with a given property is computed as the product of the sensitivity and typical measurement uncertainty in the respective aerosol or surface property. Sensitivity and uncertainty values permit estimation of total uncertainty in calculated DRF and identification of properties that most limit accuracy in estimating forcing. Total uncertainties in modeled local diurnally averaged forcing range from 0.2 to 1.3 Wm-2 (42 to 20%) depending on location (from tropical to polar sites), solar zenith angle, surface reflectance, aerosol type, and aerosol optical depth. The largest contributor to total uncertainty in DRF is usually single scattering albedo; however decreasing measurement uncertainties for any property would increase accuracy in DRF. Comparison of two radiative transfer models suggests the contribution of modeling error is small compared to the total uncertainty although comparable to uncertainty arising from some individual properties.« less
  • The authors investigated the role of exchange effects in the chiral theory (including self-interactions of the scalar field) in the framework of the self-consistent Hartree-Fock approximation to nuclear matter and light-finite nuclei. The properties of normal solutions are found to be in better agreement with the experiment than in the Hartree case. Modification of the properties of abnormal solutions is also discussed. 9 refs., 3 tabs.
  • Properties of finite nuclei are evaluated with two-nucleon (NN) and three-nucleon (NNN) interactions derived within chiral effective field theory (EFT). The nuclear Hamiltonian is fixed by properties of the A = 2 system, except for two low-energy constants (LECs) that parameterize the short range NNN interaction. We constrain those two LECs by a fit to the A = 3 system binding energy and investigate sensitivity of {sup 4}He, {sup 6}Li, {sup 10,11}B and {sup 12,13}C properties to the variation of the constrained LECs. We identify a preferred choice that gives globally the best description. We demonstrate that the NNN interactionmore » terms significantly improve the binding energies and spectra of mid-p-shell nuclei not just with the preferred choice of the LECs but even within a wide range of the constrained LECs. At the same time, we find that a very high quality description of these nuclei requires further improvements to the chiral Hamiltonian.« less
  • Cited by 23
  • We present nuclear matter calculations based on low-momentum interactions derived from chiral effective field theory potentials. The current calculations use an improved treatment of the three-nucleon force (3NF) contribution that includes a corrected combinatorial factor beyond Hartree-Fock that was omitted in previous nuclear matter calculations. We find realistic saturation properties using parameters fit only to few-body data, but with larger uncertainty estimates from cutoff dependence and the 3NF parametrization than in previous calculations.