Bulletin of the American Physical Society
5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Volume 63, Number 12
Tuesday–Saturday, October 23–27, 2018; Waikoloa, Hawaii
Session DK: Nuclear Theory II
9:00 AM–11:30 AM,
Thursday, October 25, 2018
Hilton
Room: Queen's 4
Chair: Kristina Launey, Louisiana State University
Abstract ID: BAPS.2018.HAW.DK.4
Abstract: DK.00004 : Rearrangement potential in scattering state with interactions of chiral effective field theory*
9:45 AM–10:00 AM
Presenter:
Michio Kohno
(RCNP, Osaka University)
Author:
Michio Kohno
(RCNP, Osaka University)
Although the importance of rearrangement effects in the description of ground state properties of nuclei has been recognized, the incorporation of them in a microscopic description of an optical-model potential has been limited. Extending the study of the microscopic optical-model potential [1] using interactions of chiral effective field theory, a second-order rearrangement potential in scattering state is calculated in nuclear matter. Pauli blocking effects in ladder correlations in a target nucleus by an incoming nucleon appear as a real and repulsive rearrangement potential. To estimate the rearrangement effect in a finite nucleus, a simple local density approximation is adopted. The second-order repulsive contribution is found about 5 MeV at normal density and smaller at low densities. While the depth of the optical-model potential becomes closer to the empirical one, the good account of nucleon-nucleus elastic scattering persists. The repulsive contribution can help improving the description of nucleus-nucleus scattering at larger angles.
[1] M. Toyokawa et al., Prog. Theor. Exp. Phys. 2018, 023D03 (2018).
*This work is supported by JSPS KAKENHI Grant No. JP16K17698.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.DK.4
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