Nucleon Mass Splitting at Finite Isospin Chemical Potential

Jifeng Liu; Pengfei Zhuang; Sheng Chang

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Nucleon Mass Splitting at Finite Isospin Chemical Potential

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arxiv nucl-th/0702032 v1 pith:U647MV7H submitted 2007-02-09 nucl-th

Sheng Chang , Jifeng Liu , Pengfei Zhuang This is my paper

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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.

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