dorsal/arxiv
View SchemaEffective Kaon Mass in Baryonic Matter and Kaon Condensation
| Authors | Hiroyuki Yabu, Shinji Nakamura, F. Myhrer, K. Kubodera |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9305008 |
| URL | https://arxiv.org/abs/nucl-th/9305008 |
| DOI | 10.1016/0370-2693(93)90151-7 |
| Journal | Phys.Lett. B315 (1993) 17-23 |
Abstract
The effective kaon mass in dense baryonic matter is calculated based on PCAC, current algebra and the Weinberg smoothness hypothesis. The off-shell behavior of the K-N scattering amplitudes is treated consistently with PCAC, and the effects of the subthreshold K-N resonances are also included. The effective kaon mass is found to depend crucially on the K-N sigma term. Since the current estimates of K-N Sigma term are very uncertain, we discuss various scenarios treating K-N Sigma term as an input parameter; for certain values of K-N Sigma a collective mode of a hyperon-particle-nucleon-hole state appears at high densities, possibly leading to kaon condensation.
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"abstract": "The effective kaon mass in dense baryonic matter is calculated based on PCAC,\ncurrent algebra and the Weinberg smoothness hypothesis. The off-shell behavior\nof the K-N scattering amplitudes is treated consistently with PCAC, and the\neffects of the subthreshold K-N resonances are also included. The effective\nkaon mass is found to depend crucially on the K-N sigma term. Since the current\nestimates of K-N Sigma term are very uncertain, we discuss various scenarios\ntreating K-N Sigma term as an input parameter; for certain values of K-N Sigma\na collective mode of a hyperon-particle-nucleon-hole state appears at high\ndensities, possibly leading to kaon condensation.",
"arxiv_id": "nucl-th/9305008",
"authors": [
"Hiroyuki Yabu",
"Shinji Nakamura",
"F. Myhrer",
"K. Kubodera"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/0370-2693(93)90151-7",
"journal_ref": "Phys.Lett. B315 (1993) 17-23",
"title": "Effective Kaon Mass in Baryonic Matter and Kaon Condensation",
"url": "https://arxiv.org/abs/nucl-th/9305008"
},
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