Bulletin of the American Physical Society
2023 Fall Meeting of the APS Eastern Great Lakes Section
Friday–Saturday, October 20–21, 2023; Cleveland State University, Cleveland, Ohio
Session L05: Optics, Nuclear, and Particle Physics
9:15 AM–10:27 AM,
Saturday, October 21, 2023
Cleveland State University
Room: SI 149
Chair: Petru Fodor, Department of Physics, Cleveland State University
Abstract: L05.00006 : Wolfenstein Amplitudes Derived from a Chiral NN Interaction up to N4LO*
10:15 AM–10:27 AM
Presenter:
Bradley H McClung
(Ohio University)
Authors:
Bradley H McClung
(Ohio University)
Charlotte Elster
(Ohio University)
the two-nucleon sector their constants are fitted to NN observables.
This talk focuses on the Epelbaum-Krebs-Meissner (EKM) NN interaction with a local coordinate-space regulator.
From a given NN interaction, one usually calculates phase shifts, which are then used to determine scattering
observables.
An intermediate step is to construct Wolfenstein amplitudes from the phase shifts, which may allow to
investigate their connection to the operator structure of the NN interaction.
In this talk, the Wolfenstein amplitudes and their dependence on the NN laboratory energy up to 200 MeV
as well as the cutoff parameter will be shown. Furthermore, the contributions of the different partial waves
to each amplitude will be investigated.
*This work was supported in part by the U.S. DoE under contract DE-FG02-93ER40756.
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