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Title: Electric dipole polarizability from first principles calculations

The electric dipole polarizability quantifies the low-energy behavior of the dipole strength and is related to critical observables such as the radii of the proton and neutron distributions. Its computation is challenging because most of the dipole strength lies in the scattering continuum. In our paper we combine integral transforms with the coupled-cluster method and compute the dipole polarizability using bound-state techniques. Furthermore, employing different interactions from chiral effective field theory, we confirm the strong correlation between the dipole polarizability and the charge radius, and study its dependence on three-nucleon forces. Finally, we find good agreement with data for the 4He, 40Ca, and 16O nuclei, and predict the dipole polarizability for the rare nucleus 22O.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [4]
  1. TRIUMF, Vancouver, BC (Canada); Univ. of British Columbia, Vancouver, BC (Canada). Dept. of Physics and Astronomy
  2. TRIUMF, Vancouver, BC (Canada); Univ. of Manitoba (Canada). Dept. of Physics and Astronomy
  3. Hebrew Univ. of Jerusalem (Israel). Racah Inst. of Physics
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division and National Center for Computational Sciences
  6. Univ. of Trento (Italy). Dept. of Physics; TIFPA, Trento (Italy). National Inst. of Nuclear Physics
Publication Date:
Grant/Contract Number:
AC05-00OR22725; FG02-96ER40963; SC0008499; PRIN-2009TWL3MX; SAPIN-2015-00031
Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 94; Journal Issue: 3; Journal ID: ISSN 2469-9985
Publisher:
APS
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
OSTI Identifier:
1327613
Alternate Identifier(s):
OSTI ID: 1328464