The European Physical Journal C | |
Infrared-improved soft-wall AdS/QCD model for mesons | |
Zhen Fang1  Ling-Xiao Cui1  Yue-Liang Wu1  | |
[1] State Key Laboratory of Theoretical Physics (SKLTP), Beijing, People’s Republic of China;Kavli Institute for Theoretical Physics China (KITPC), Beijing, People’s Republic of China;Institute of Theoretical Physics, Chinese Academy of Sciences, 100190, Beijing, People’s Republic of China;University of Chinese Academy of Sciences (UCAS), Beijing, People’s Republic of China; | |
关键词: Conformal Symmetry; Chiral Symmetry Breaking; Scalar Meson; Pion Form Factor; Dilaton Field; | |
DOI : 10.1140/epjc/s10052-015-3866-y | |
来源: Springer | |
【 摘 要 】
We construct and investigate an infrared-improved soft-wall AdS/QCD model for mesons. Both linear confinement and chiral symmetry breaking of low energy QCD are well characterized in such an infrared-improved soft-wall AdS/QCD model. The model enables us to obtain a more consistent numerical prediction for the mass spectra of resonance scalar, pseudoscalar, vector, and axial-vector mesons. In particular, the predicted mass for the lightest ground state scalar meson shows good agreement with the experimental data. The model also provides a remarkable check for the Gell-Mann–Oakes–Renner relation and a sensible result for the space-like pion form factor.
【 授权许可】
CC BY
【 预 览 】
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