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- W4380136268 abstract "In this work, we develop an updated model for pion-nucleus scattering in the framework of the distorted wave impulse approximation in momentum space. We construct the second-order pion-nucleus potential, which involves analysis of pion-nucleus elastic scattering as a solution of the Lippmann-Schwinger equation. The potential is based on the individual pion-nucleon scattering amplitudes extracted from SAID, and its second-order correction is presented in detail. We estimate optimal energy-independent parameters of the potential by a multi-energy fit of the pion-${}^{12}$C total, reaction, and differential elastic cross sections. We show the predictive power by applying it to pion elastic scattering on ${}^{16}$O, ${}^{28}$Si, and ${}^{40}$Ca." @default.
- W4380136268 created "2023-06-10" @default.
- W4380136268 creator A5009069448 @default.
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- W4380136268 date "2023-06-07" @default.
- W4380136268 modified "2023-10-14" @default.
- W4380136268 title "Momentum-space second-order pion-nucleus potential including medium effects in the $Delta(1232)$ region" @default.
- W4380136268 doi "https://doi.org/10.48550/arxiv.2306.04913" @default.
- W4380136268 hasPublicationYear "2023" @default.
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