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Axial anomaly at finite temperature and finite density |
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| Authors: | Qian Zhi-Xin Su Ru-Keng Yu Peter K N |
| Institution: | 1.Department of Physics, Fudan University, 200433, Shanghai, People's Republic of China ;2.China Center of Advanced Science and Technology (World Laboratory), P.O. Box 8730, Beijing, People's Republic of China ;4.Department of Physics and Materials Science, City Polytechnic of Hong Kong, Kowloon Tong, Kowloon, Hong Kong ; |
| Abstract: | TheU(1) axial anomaly in a hot fermion medium is investigated by using the real time Green's function method. After calculating the lowest order triangle diagrams, we find that finite temperature as well as finite fermion density does not affect the axial anomaly. The higher order corrections for the axial anomaly are discussed. |
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