Global Microscopic Description of Nucleon-Nucleus Scattering with Quantified Uncertainties
- 주제(기타) Physics, Multidisciplinary
- 설명문(일반) [Whitehead, T. R.; Holt, J. W.] Texas A&M Univ, Cyclotron Inst, College Stn, TX 77843 USA; [Whitehead, T. R.; Holt, J. W.] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA; [Whitehead, T. R.] Michigan State Univ, Facil Rare Isotope Beams, E Lansing, MI 48824 USA; [Lim, Y.] Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany; [Lim, Y.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany; [Lim, Y.] GSI Helmholtzzentrum Schwerionenforsch GmbH, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany; [Lim, Y.] Ewha Womans Univ, Dept Sci Educ, Seoul 120750, South Korea
- 등재 SCIE, SCOPUS
- OA유형 Green Submitted
- 발행기관 AMER PHYSICAL SOC
- 발행년도 2021
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000190154
- 본문언어 영어
- Published As https://doi.org/10.1103/PhysRevLett.127.182502
- PubMed https://pubmed.ncbi.nlm.nih.gov/34767381
초록/요약
We develop for the first time a microscopic global nucleon-nucleus optical potential with quantified uncertainties suitable for analyzing nuclear reaction experiments at next-generation rare-isotope beam facilities. Within the improved local density approximation and without any adjustable parameters, we begin by computing proton-nucleus and neutron-nucleus optical potentials from a set of five nuclear forces from chiral effective field theory for 1800 target nuclei in the mass range 12 < A < 242 for energies between 0 MeV < E < 150 MeV. We then parameterize a global optical potential for each chiral force that depends smoothly on the projectile energy as well as the target nucleus mass number and isospin asymmetry. Uncertainty bands for elastic scattering observables are generated from a full covariance analysis of the parameters entering in the description of our global optical potential and benchmarked against existing experimental data for stable target nuclei. Since our approach is purely microscopic, we anticipate a similar quality of the model for nucleon scattering on unstable isotopes.
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