Electric dipole polarizability from first principles calculations
Journal Article
·
· Physical Review C
- TRIUMF, Vancouver, BC (Canada); Univ. of British Columbia, Vancouver, BC (Canada). Dept. of Physics and Astronomy
- TRIUMF, Vancouver, BC (Canada); Univ. of Manitoba (Canada). Dept. of Physics and Astronomy
- Hebrew Univ. of Jerusalem (Israel). Racah Inst. of Physics
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division and National Center for Computational Sciences
- Univ. of Trento (Italy). Dept. of Physics; TIFPA, Trento (Italy). National Inst. of Nuclear Physics
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.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-00OR22725; FG02-96ER40963; SC0008499
- OSTI ID:
- 1327613
- Alternate ID(s):
- OSTI ID: 1328464
- Journal Information:
- Physical Review C, Journal Name: Physical Review C Journal Issue: 3 Vol. 94; ISSN 2469-9985; ISSN PRVCAN
- Publisher:
- APSCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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