Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2007-02-09
Chin.Phys.Lett.25:55-57,2008
Physics
Nuclear Physics
Nuclear Theory
3 pages and no figures
Scientific paper
10.1088/0256-307X/25/1/016
We investigate nucleon mass splitting at finite isospin chemical potential in
the frame of two flavor Nambu--Jona-Lasinio model. It is analytically proved
that, in the phase with explicit isospin symmetry breaking the proton mass
decreases and the neutron mass increases linearly in the isospin chemical
potential.
Chang Sheng
Liu Jifeng
Zhuang Peng-fei
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