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Partial wave contributions to the antikaon potential at finite momentum

Laura Tolos·Angels Ramos·Artur Polls·Thomas T. S. Kuo
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Abstract

The momentum dependence of the antikaon optical potential in nuclear matter is obtained from a microscopic and self-consistent calculation using the meson-exchange Jülich $\bar{K}N$ interaction. Two self-consistent schemes are discussed, which would lead to substantially different predictions for the width of ${\bar K}$ nuclear bound states. The effect of higher partial waves of the $\bar{K}N$ interaction, beyond the L=0 component, is studied and found to have moderate but non-negligible effects on the ${\bar K}$ nuclear potential at zero momentum. At momenta as large as 500 MeV/c, relevant in the analysis of heavy-ion collisions, the higher partial partial waves modify the ${\bar K}$ optical potential by nearly a factor of two.

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Laura Tolos, Angels Ramos, Artur Polls, Thomas T. S. Kuo. 2000-07-18. Partial wave contributions to the antikaon potential at finite momentum. https://doi.org/10.1016/s0375-9474(00)00711-9

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