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Ab initio translationally invariant nucleon-nucleus optical potentials

Journal Article · · Physical Review. C
 [1];  [1];  [1];  [2];  [3];  [4];  [5]
  1. Louisiana State University, Baton Rouge, LA (United States)
  2. Ohio University, Athens, OH (United States)
  3. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  4. Academy of Sciences of the Czech Republic, Řež (Czech Republic); Louisiana State University, Baton Rouge, LA (United States)
  5. Czech Technical University in Prague (Czech Republic)
+ Show Author Affiliations
We combine the ab initio symmetry-adapted no-core shell model (SA-NCSM) with the single-particle Green's function approach to construct optical potentials rooted in first principles. Specifically, we show that total cross sections and phase shifts for neutron elastic scattering from a 4He target with projectile energies between 0.5 and 10 MeV closely reproduce the experiment. In addition, we discuss an important new development that resolves a long-standing issue with spurious center-of-mass motion in the Green's function formalism for many-body approaches. Furthermore, the new development opens a path for first-principle predictions of cross sections for elastic scattering of single-nucleon projectiles, nucleon capture, and deuteron breakup reactions, feasible for a broad range of open-shell spherical and deformed nuclei in the SA-NCSM approach.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Louisiana State Univ., Baton Rouge, LA (United States); Louisiana State University, Baton Rouge, LA (United States)
Sponsoring Organization:
U.S. National Science Foundation; USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC02-05CH11231; AC52-07NA27344; FG02-93ER40756; SC0023532
OSTI ID:
2879336
Alternate ID(s):
OSTI ID: 2473982
OSTI ID: 2281716
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 1 Vol. 109; ISSN 2469-9985; ISSN 2469-9993
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Ab initio calculations
Elastic scattering reactions
Many-body techniques
Nuclear forces
Nuclear many-body theory
Nuclear reactions
Nuclear structure & decays
ab initio calculations
ab initio modeling
elastic neutron scattering
elastic scattering reactions
many-body techniques
nuclear forces
nuclear many-body theory
nuclear reactions
nuclear structure & decays
optical potentials