Finite temperature effect in infrared-improved AdS/QCD model with back reaction of bulk vacuum

Ling-Xiao Cui; Zhen Fang; Yue-Liang Wu

doi:10.1088/1674-1137/40/6/063101

Chinese Physics C> 2016, Vol. 40> Issue(6) : 063101 DOI: 10.1088/1674-1137/40/6/063101

Finite temperature effect in infrared-improved AdS/QCD model with back reaction of bulk vacuum

Ling-Xiao Cui ^1,2,3,4,, ,
Zhen Fang ^1,2,3,4,, ,
Yue-Liang Wu ^1,2,3,4,,

1.
Key Laboratory of Theoretical Physics(SKLTP), Beijing 100190, China
2.
Kavli Institute for Theoretical Physics China(KITPC), Beijing 100190, China
3.
Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
4.
University of Chinese Academy of Sciences(UCAS), Beijing 100049, China

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Abstract：
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≈150±7 MeV, which is consistent with the recent results from lattice QCD simulations.
- AdS/QCD ,
- finite temperature ,
- mass spectrum ,
- spectral function ,
- back-reaction

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Ling-Xiao Cui, Zhen Fang and Yue-Liang Wu. Finite temperature effect in infrared-improved AdS/QCD model with back reaction of bulk vacuum[J]. Chinese Physics C, 2016, 40(6): 063101. doi: 10.1088/1674-1137/40/6/063101

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Received: 2015-09-15
Revised: 2016-01-21

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Supported by National Nature Science Foundation of China (NSFC)(10975170, 10905084, 10821504), and Project of Knowledge Innovation Program (PKIP) of Chinese Academy of Science

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沈阳化工大学材料科学与工程学院沈阳 110142

Finite temperature effect in infrared-improved AdS/QCD model with back reaction of bulk vacuum

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Finite temperature effect in infrared-improved AdS/QCD model with back reaction of bulk vacuum

Corresponding author: Ling-Xiao Cui,

Corresponding author: Zhen Fang,

Corresponding author: Yue-Liang Wu,

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