dorsal/arxiv
View SchemaMedium modifications of antikaons in dense matter
| Authors | Th. Roth, M. Buballa, J. Wambach |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0504056 |
| URL | https://arxiv.org/abs/nucl-th/0504056 |
Abstract
We investigate the modification of antikaons in isospin symmetric and asymmetric nuclear matter. Using the leading s-wave couplings of the SU(3) chiral meson-baryon Lagrangian we solve the coupled channel kaon-nucleon scattering equation selfconsistently. The in-medium antikaon propagator is calculated for different densities and different proton/neutron ratios. The spectral function of the antikaon is found to be broadened strongly, and its mass is shifted downward significantly. However, comparing the effective in-medium mass of the antikaon to the relevant charge chemical potential of neutron star matter, we find that kaon condensation is unlikely to occur in neutron stars.
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"date_created": "2026-03-02T18:00:04.962000Z",
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"abstract": "We investigate the modification of antikaons in isospin symmetric and\nasymmetric nuclear matter. Using the leading s-wave couplings of the SU(3)\nchiral meson-baryon Lagrangian we solve the coupled channel kaon-nucleon\nscattering equation selfconsistently. The in-medium antikaon propagator is\ncalculated for different densities and different proton/neutron ratios. The\nspectral function of the antikaon is found to be broadened strongly, and its\nmass is shifted downward significantly. However, comparing the effective\nin-medium mass of the antikaon to the relevant charge chemical potential of\nneutron star matter, we find that kaon condensation is unlikely to occur in\nneutron stars.",
"arxiv_id": "nucl-th/0504056",
"authors": [
"Th. Roth",
"M. Buballa",
"J. Wambach"
],
"categories": [
"nucl-th"
],
"title": "Medium modifications of antikaons in dense matter",
"url": "https://arxiv.org/abs/nucl-th/0504056"
},
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