arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1404.0761hep-phhep-th
收藏

考虑体真空反反应的体全息AdS/QCD的热谱函数和退禁闭温度

Thermal Spectral Function and Deconfinement Temperature in Bulk Holographic AdS/QCD with Back Reaction of Bulk Vacuum

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

摘要:

基于对共振标量、赝标量、矢量和轴向矢量介子的质量谱提供一致预测的红外改进的体全息AdS/QCD模型,我们研究了它的有限温度行为。通过对介子谱函数的分析,用Breit-Wigner形式进行拟合,对介子的临界温度进行了分析。考虑了体真空的背反应效应,在背反应改进作用量的基础上计算了共振介子的热质谱函数。发现一个合理的熔化温度为$T_c \simeq 150 \pm 7$ MeV,这与最近的格点量子色动力学模拟结果一致.

英文摘要:

Based on the IR-improved bulk holographic AdS/QCD model which provides a consistent prediction for the mass spectra of resonance scalar, pseudoscalar, vector and axial vector mesons, we investigate its finite temperature behavior. 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, 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 $T_c \simeq 150 \pm 7$ MeV, which is consistent with the recent results from lattice QCD simulations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑