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Title: Electric dipole polarizability of 58Ni

Journal Article · · Physical Review. C
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [7]; ORCiD logo [8]; ORCiD logo [9];  [1]; ORCiD logo [10]; ORCiD logo [11]
  1. Technische Univ. Darmstadt (Germany)
  2. Johannes Gutenberg Univ., Mainz (Germany); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
  3. Johannes Gutenberg Univ., Mainz (Germany)
  4. Univ. degli Studi di Milano (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy)
  5. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). National Center for Computational Sciences (NCCS)
  6. Peking University, Beijing (China); Lanzhou Univ. (China)
  7. Osaka Univ. (Japan); Fujita Health University (Japan)
  8. Lanzhou Univ. (China)
  9. Univ. of Erlangen (Germany)
  10. Univ. of Barcelona (Spain); Univ. degli Studi di Milano (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy)
  11. Osaka Univ. (Japan)

The electric dipole strength distribution in 58Ni between 6 and 20 MeV has been determined from proton inelastic scattering experiments at very forward angles at RCNP, Osaka. The experimental data are rather well reproduced by quasiparticle random-phase approximation calculations including vibration coupling, despite a mild dependence on the adopted Skyrme interaction. They allow an estimate of the experimentally inaccessible high-energy contribution above 20 MeV, leading to an electric dipole polarizability αD⁡ (58Ni) = 3.48 (31)⁢ fm3. This serves as a test case for recent extensions of coupled-cluster calculations with chiral effective field theory interactions to nuclei with two nucleons on top of a closed-shell system.

Research Organization:
Michigan State Univ., East Lansing, MI (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
Generalitat de Catalunya; German Research Foundation (DFG); Ministerio de Ciencia, Innovación y Universidades (MICIU); National Key Research and Development Program of China; National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR). Scientific Discovery through Advanced Computing (SciDAC); USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC05-00OR22725; SC0013617
OSTI ID:
2538256
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 2 Vol. 111; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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