Effective Kaon Mass in Baryonic Matter and Kaon Condensation
Nuclear Theory
2009-10-22 v1
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.
Cite
@article{arxiv.nucl-th/9305008,
title = {Effective Kaon Mass in Baryonic Matter and Kaon Condensation},
author = {Hiroyuki Yabu and Shinji Nakamura and F. Myhrer and K. Kubodera},
journal= {arXiv preprint arXiv:nucl-th/9305008},
year = {2009}
}
Comments
12pages, USC(NT)-95-5