Direct neutron capture cross section on Ge80 and probing shape coexistence in neutron-rich nuclei

Ahn, S.; Bardayan, D. W.; Jones, K. L.; Adekola, A. S.; Arbanas, G.; Blackmon, J. C.; Chae, K. Y.; Chipps, K. A.; Cizewski, J. A.; Hardy, S.; Howard, M. E.; Kozub, R. L.; Manning, B.; Matoš, M.; Nesaraja, C. D.; O'Malley, P. D.; Pain, S. D.; Peters, W. A.; Pittman, S. T.; Rasco, B. C.; Smith, M. S.; Spassova, I.

doi:10.1103/PhysRevC.100.044613

Title: Direct neutron capture cross section on ${}^{80}{Ge}$ and probing shape coexistence in neutron-rich nuclei

Journal Article · 22 October 2019 · Physical Review C

DOI: https://doi.org/10.1103/PhysRevC.100.044613 · OSTI ID:1623265

^[1]; Bardayan, D. W. ^[2]; Jones, K. L. ^[3]; Adekola, A. S. ^[4]; Arbanas, G. ^[5]; Blackmon, J. C. ^[6]; Chae, K. Y. ^[7]; Chipps, K. A. ^[8]; Cizewski, J. A. ^[4]; Hardy, S. ^[4]; Howard, M. E. ^[9]; Kozub, R. L. ^[10]; Manning, B. ^[4]; Matoš, M. ^[6]; Nesaraja, C. D. ^[5]; O'Malley, P. D. ^[11]; Pain, S. D. ^[5]; Peters, W. A. ^[12]; Pittman, S. T. ^[13]; Rasco, B. C. ^[6] more »

Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Michigan State Univ., East Lansing, MI (United States); Texas A & M Univ., College Station, TX (United States); Rutgers University
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Notre Dame, IN (United States)
Univ. of Tennessee, Knoxville, TN (United States)
Rutgers Univ., New Brunswick, NJ (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Louisiana State Univ., Baton Rouge, LA (United States)
Sungkyunkwan Univ., Suwon (Republic of Korea)
Colorado School of Mines, Golden, CO (United States); Univ. of Tennessee, Knoxville, TN (United States)
Rutgers Univ., New Brunswick, NJ (United States); Tennessee Technological Univ., Cookeville, TN (United States)
Tennessee Technological Univ., Cookeville, TN (United States)
Rutgers Univ., New Brunswick, NJ (United States); Univ. of Notre Dame, IN (United States)
Oak Ridge Associated Univ., Oak Ridge, TN (United States)
Univ. of Tennessee, Knoxville, TN (United States); Louisiana State Univ., Baton Rouge, LA (United States)

Results are presented from the first neutron-transfer measurement on ⁸⁰Ge using an exotic beam from the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. Newly measured spins and spectroscopic factors of low-lying states of ⁸¹Ge are determined, and the neutron capture cross section on ⁸⁰Ge was calculated in a direct-semidirect model to provide a more realistic (n,γ) reaction rate for r-process simulations. Furthermore, a region of shape coexistence around N ≈ 50 is confirmed and implications for the magic nature of ⁷⁸Ni are discussed.

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Research Organization:: Rutgers Univ., Piscataway, NJ (United States); Univ. of Tennessee, Knoxville, TN (United States); Tennessee Technological Univ., Cookeville, TN (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Louisiana State Univ., Baton Rouge, LA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF); National Research Foundation of Korea (NRF)

Grant/Contract Number:: NA0003897; FG02-96ER40983; SC0001174; FG02-96ER40955; AC05-00OR22725; FG02-96ER40978; FG52-08NA28552; NA0002132

OSTI ID:: 1623265

Journal Information:: Physical Review C, Journal Name: Physical Review C Journal Issue: 4 Vol. 100; ISSN 2469-9985; ISSN PRVCAN

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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