No-core shell model calculations of the photonuclear cross section of 10B
Abstract
Results of ab initio no-core, shell model calculations for the photonuclear cross section of 10B are presented using realistic two-nucleon (NN) chiral forces up to next-to-next-to-next-order (N3LO) softened by the similarity renormalization group method (SRG) with λ=2.02 fm-1. The electric-dipole response function is calculated using the Lanczos method, with the effects of the continuum included via neutron escape widths derived from R-matrix theory and using the Lorentz integral transform method. The calculated cross section agrees well with experimental data in terms of structure as well as in absolute peak height, σmax=4.85 mb at photon energy ω=23.61 MeV, and integrated cross section 85.36 MeV. mb. We also test the Brink hypothesis by calculating the electric-dipole response for the first nine positive-parity states with J≠0 in 10B and verify that dipole excitations built upon the ground and excited states have similar characteristics.
- Authors:
-
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- San Diego State Univ., CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1597583
- Report Number(s):
- LLNL-JRNL-771305
Journal ID: ISSN 1434-6001; 963074; TRN: US2103143
- Grant/Contract Number:
- AC52-07NA27344; FG02- 03ER41272; SCW0498
- Resource Type:
- Accepted Manuscript
- Journal Name:
- European Physical Journal. A
- Additional Journal Information:
- Journal Volume: 55; Journal Issue: 12; Journal ID: ISSN 1434-6001
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; nuclear physics; radiation physics
Citation Formats
Kruse, M. K. G., Ormand, W. E., and Johnson, C. W. No-core shell model calculations of the photonuclear cross section of 10B. United States: N. p., 2019.
Web. doi:10.1140/epja/i2019-12905-1.
Kruse, M. K. G., Ormand, W. E., & Johnson, C. W. No-core shell model calculations of the photonuclear cross section of 10B. United States. https://doi.org/10.1140/epja/i2019-12905-1
Kruse, M. K. G., Ormand, W. E., and Johnson, C. W. Mon .
"No-core shell model calculations of the photonuclear cross section of 10B". United States. https://doi.org/10.1140/epja/i2019-12905-1. https://www.osti.gov/servlets/purl/1597583.
@article{osti_1597583,
title = {No-core shell model calculations of the photonuclear cross section of 10B},
author = {Kruse, M. K. G. and Ormand, W. E. and Johnson, C. W.},
abstractNote = {Results of ab initio no-core, shell model calculations for the photonuclear cross section of 10B are presented using realistic two-nucleon (NN) chiral forces up to next-to-next-to-next-order (N3LO) softened by the similarity renormalization group method (SRG) with λ=2.02 fm-1. The electric-dipole response function is calculated using the Lanczos method, with the effects of the continuum included via neutron escape widths derived from R-matrix theory and using the Lorentz integral transform method. The calculated cross section agrees well with experimental data in terms of structure as well as in absolute peak height, σmax=4.85 mb at photon energy ω=23.61 MeV, and integrated cross section 85.36 MeV. mb. We also test the Brink hypothesis by calculating the electric-dipole response for the first nine positive-parity states with J≠0 in 10B and verify that dipole excitations built upon the ground and excited states have similar characteristics.},
doi = {10.1140/epja/i2019-12905-1},
journal = {European Physical Journal. A},
number = 12,
volume = 55,
place = {United States},
year = {2019},
month = {12}
}
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