Nucleon Mass Splitting at Finite Isospin Chemical Potential |
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| Authors: | CHANG Sheng LIU Ji-Feng ZHUANG Peng-Fei |
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| Affiliation: | College of Physics and Electronic Engineering, Guangxi Normal University, Guilin 541004Department of Physics, Tsinghua University, Beijing 100084 |
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| Abstract: | We investigate nucleon mass splitting at finite isospin chemical potential in the frame of the two-flavour Nambu-Jona-Lasinio model. It is analytically proven 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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| Keywords: | 11.10.Wx 12.38.-t 25.75.Nq |
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