2014/04/30 by Masakazu Toyokawa, Kosho Minomo, Michio Kohno +1 · 18 citations
Earth and Planetary Sciences · Physics and Astronomy · #Folding (DSP implementation) #Geometry #High-pressure geophysics and materials #Nuclear force #Nuclear matter #Nuclear physics #Nuclear physics research studies #Nucleon #Particle physics #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scattering #Tensor (intrinsic definition) #nucl-th
paper · pdf · doi:10.1088/0954-3899/42/2/025104
published in Journal of Physics G Nuclear and Particle Physics 42(2), 025104 (IOP Publishing) · 20 pages, 9 figures
arxiv created 2014/11/06 · openalex publication_date 2014/12/18 · arxiv updated 2015/06/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate the effects of chiral three-nucleon force (3NF) at NNLO level on nucleon–nucleus (NA) elastic scattering, using the standard framework based on the Brueckner–Hartree–Fock method for nuclear matter and the g -matrix folding model for NA elastic scattering. The optical potential in nuclear matter calculated from chiral two-nucleon force (2NF) at N 3 LO level is found to be close to that from Bonn-B 2NF, whereas the Melbourne g -matrix is known as a practical effective nucleon–nucleon interaction constructed by localizing the g -matrices calculated from Bonn-B 2NF. As the first attempt to estimate chiral-3NF effects on NA scattering, the effects are simply introduced by multiplying the local Melbourne g -matrix by the ratio of the optical potential in nuclear matter calculated from chiral 2NF+3NF to that from chiral 2NF. For NA elastic scattering on various targets at 65 MeV, chiral 3NF makes the folding potential less attractive and more absorptive. The novel property for the imaginary part is originated in the enhancement of tensor correlations due to chiral 3NF (mainly the 2 π -exchange diagram). The two effects are small for differential cross sections and vector analyzing powers at the forward and middle angles where the experimental data are available. If backward measurements are made, the data will reveal the effects of chiral 3NF.