dorsal/arxiv
View SchemaThe antikaon potential in nuclear matter at finite momentum
| Authors | A. Sibirtsev, W. Cassing |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9909024 |
| URL | https://arxiv.org/abs/nucl-th/9909024 |
Abstract
We study the antikaon potential at finite momentum for proton and neutron nuclear matter. Our approach is based on the momentum dependence of the real part of the total $K^-N$ scattering amplitude, which is fixed in free space by experimental data, using the dispersion relation approach. We decompose the contributions to the scattering amplitude from different processes and consider the $\Lambda$(1405) and $\Sigma$(1385) to be dissolved in nuclear matter at density $\rho_0$. Within this approach the $K^-$ potential is found to be attractive up to high kaon momenta. Our result is in line with the data on the antikaon potential evaluated from the analysis of kaonic atoms (low momenta), heavy-ion (interdmediate momenta) and proton-nucleus (high momenta) collisions.
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"abstract": "We study the antikaon potential at finite momentum for proton and neutron\nnuclear matter. Our approach is based on the momentum dependence of the real\npart of the total $K^-N$ scattering amplitude, which is fixed in free space by\nexperimental data, using the dispersion relation approach. We decompose the\ncontributions to the scattering amplitude from different processes and consider\nthe $\\Lambda$(1405) and $\\Sigma$(1385) to be dissolved in nuclear matter at\ndensity $\\rho_0$. Within this approach the $K^-$ potential is found to be\nattractive up to high kaon momenta. Our result is in line with the data on the\nantikaon potential evaluated from the analysis of kaonic atoms (low momenta),\nheavy-ion (interdmediate momenta) and proton-nucleus (high momenta) collisions.",
"arxiv_id": "nucl-th/9909024",
"authors": [
"A. Sibirtsev",
"W. Cassing"
],
"categories": [
"nucl-th"
],
"title": "The antikaon potential in nuclear matter at finite momentum",
"url": "https://arxiv.org/abs/nucl-th/9909024"
},
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