Phase Structure of Strange Matter in a Non-topological Soliton Model
ZHANG Yi-jun1, GAO Song2, HE Yong-bin3, SU Ru-keng1,3, LI Xue-qian4
1Department of Physics, Fudan University, Shanghai 200433
2Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039
3China Center of Advanced Science and Technology (World Laboratory), P. O. Box 8730, Beijing 100080
4Department of Physics, Nankai University, Tianjin 300071
Phase Structure of Strange Matter in a Non-topological Soliton Model
1Department of Physics, Fudan University, Shanghai 200433
2Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039
3China Center of Advanced Science and Technology (World Laboratory), P. O. Box 8730, Beijing 100080
4Department of Physics, Nankai University, Tianjin 300071
Abstract： A non-topological soliton model with strange quarks is suggested to investigate the phase structure of strange matter. The results are qualitatively in agreement with that obtained by MIT bag model provided the ratio of coupling constants of different quarks to soliton scalar field xσ ≡ ggσ/gqσ larger than a critical value xc ~ 0.86, but as xσ gets smaller than xc, the phase structure may change.
1997, Vol. 14 
