Nucleon Mass Splitting at Finite Isospin Chemical Potential
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⚛️ nucl-th
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isospinmasschemicalpotentialfinitenucleonsplittinganalytically
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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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