Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9850858 | Nuclear Physics A | 2005 | 27 Pages |
Abstract
The possibility of kaon condensation in high-density symmetric nuclear matter is investigated including both s- and p-wave kaon-baryon interactions within the relativistic mean-field (RMF) theory. Above a certain density, we have a collective K¯s state carrying the same quantum numbers as the antikaon. The appearance of the K¯s state is caused by the time component of the axial-vector interaction between kaons and baryons. It is shown that the system becomes unstable with respect to condensation of K-K¯s pairs. We consider how the effective baryon masses affect the kaon self-energy coming from the time component of the axial-vector interaction. Also, the role of the spatial component of the axial-vector interaction on the possible existence of the collective kaonic states is discussed in connection with Î-mixing effects in the ground state of high-density matter. Implications of KK¯s condensation for high-energy heavy-ion collisions are briefly mentioned.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Tomoyuki Maruyama, Takumi Muto, Toshitaka Tatsumi, Kazuo Tsushima, Anthony W. Thomas,