2013/10/01 by LING-XIAO CUI, Ling-Xiao Cui, Yue-Liang Wu +1 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #High-Energy Particle Collisions Research
paper · doi:10.1142/s0217732313501320
The thermal mass spectra of scalar and pseudo-scalar mesons are studied in an IR-improved soft-wall AdS/QCD model. The Reissner–Nordstrom AdS black hole metric is introduced to describe both the finite temperature and density effects. The thermal spectral function is computed, which shows that the position of peak moves toward a smaller value and the width of peak also broadens to a larger value as the temperature increases. The critical temperature at which the peaks are completely dissolved has been found to be around T c ≃160~200 MeV . The effect of chemical potential is shown to be the same as the one caused by the temperature. It is found that when the temperature approaches to zero T≈0, the melting down of mesons occurs at the scaled critical chemical potential μ 0 /κ≈2.2~2.4 GeV.