摘要
The skyrmion stability at finite isospin chemical potentialμ_I is studied using the Skyrme Lagrangian with a finite pion mass m_π.A critical valueμ_(Ic)=■,above which a stable soliton does not exist,is found.We also explore some properties of the skyrmion as function of i.e.,the isoscalar rms radius and the isoscalar magnetic rms radius.Finally,considering the finite temperature effect on the skyrmion mass,we obtain a critical temperature T_c,using the profile function of the skyrmion,above which the skyrmion mass does not have a minimum,which can be interpreted as the occurrence of the deconfinement phase transition.
The skyrmion stability at finite isospin chemical potential μI is studied using the Skyrme Lagrangian with a finite pion mass mπ.A critical value μIc=■,above which a stable soliton does not exist,is found.We also explore some properties of the skyrmion as function of i.e.,the isoscalar rms radius and the isoscalar magnetic rms radius.Finally,considering the finite temperature effect on the skyrmion mass,we obtain a critical temperature Tc,using the profile function of the skyrmion,above which the skyrmion mass does not have a minimum,which can be interpreted as the occurrence of the deconfinement phase transition.
作者
Wen-Li Yuan
Zhen-Ni Xu
Jin-Li Zhang
Hong-Shi Zong
苑文莉;徐珍妮;张金利;宗红石(Department of Physics,Nanjing University,Nanjing 210093,China;Department of Physics and Jiangsu Key Laboratory for Numerical Simulation of Large Scale Complex Systems,Nanjing Normal University,Nanjing 210023,China;Joint Center for Particle,Nuclear Physics and Cosmology,Nanjing 210093,China;State Key Laboratory of Theoretical Physics,Institute of Theoretical Physics,CAS,Beijing 100190,China)
基金
Supported in part by Natural Science Foundation of China(NSFC)(11805097,11535005,11690030)
the Jiangsu Provincial Natural Science Foundation of China(BK20180323)
