Density-Dependence of Quark Mass in Scaling Chiral Lagrangian |
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| Authors: | CHEN Hong LIU Bo |
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| Affiliation: | Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | We calculate the quark mass in dense medium at one-loop order for an effective chiral Lagrangian supplemented by the scale anomaly of QCD. It is found that the tadpole diagram corrections lead to the decreasing mass of quark with density, while the effect of radiative corrections is opposite to that of the tadpole diagrams. |
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| Keywords: | baryon density quark mass chiral symmetry scale anomaly |
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