Based on an IR-improved soft-wall AdS/QCD model for mesons, which provides a consistent prediction for the mass spectra of resonance scalar, pseudoscalar, vector and axial-vector mesons, we investigate its finite temperature effect. By analyzing the spectral function of mesons and fitting it with a Breit-Wigner form, we perform an analysis for the critical temperature of mesons. The back-reaction effects of bulk vacuum are considered and the thermal mass spectral function of resonance mesons is calculated based on the back-reaction improved action. A reasonable melting temperature is found to be T-c approximate to 150 +/- 7 MeV, which is consistent with the recent results from lattice QCD simulations.
National Nature Science Foundation of China (NSFC) [10975170, 10905084, 10821504]
; Project of Knowledge Innovation Program (PKIP) of Chinese Academy of Science
Cui, LX,Fang, Z,Wu, YL. Finite temperature effect in infrared-improved AdS/QCD model with back reaction of bulk vacuum[J]. CHINESE PHYSICS C,2016,40(6):63101.
