Remarks on two-dimensional power correction in soft wall model
黄涛(理); Zuo F(左芬); Huang, T; Zuo, F
刊名CHINESE PHYSICS LETTERS
2008
卷号25期号:10页码:3601-3604
学科分类Physics
通讯作者[Huang Tao] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; Chinese Acad Sci, Ctr Sci Facil, Beijing 100049, Peoples R China
文章类型Article
英文摘要We present a direct derivation of the two-point correlation function of the vector current in the soft wall model by using the AdS/CFT dictionary. The resulting correlator is exactly the same as the one previously obtained from dispersion relation with the same spectral function as in this model. The coefficient C-2 of the two-dimensional power correction is found to be C2 = -c/2 with c the slope of the Regge trajectory, rather than C-2 = -c/3 derived from the strategy of the first quantized string theory. Taking the slope of the p trajectory c approximate to 0.9 GeV2 as input, we then obtain C-2 approximate to -0.45 GeV2. The gluon condensate is found to be approximate to 0.064 GeV4, which is almost identical to the QCD sum rule estimation. By comparing these two equivalent derivation of the correlator of scalar glueball operator, we demonstrate that the two-dimensional correction cannot be eliminated by including the non-leading solution in the bulk-to-boundary propagator, as carried out by Colangelo et al.[arXiv:0711.4747]. In other words, the two-dimensional correction does exist in the scalar glueball case. Also it is manifest by using the dispersion relation that the minus sign of gluon condensate and violation of the low energy theorem are related to the subtraction scheme.
类目[WOS]Physics, Multidisciplinary
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000259736600022
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239925
专题中国科学院高能物理研究所_理论物理室_期刊论文
中国科学院高能物理研究所_理论物理室
作者单位中国科学院高能物理研究所
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Huang T,Zuo F,Huang, T,et al. Remarks on two-dimensional power correction in soft wall model[J]. CHINESE PHYSICS LETTERS,2008,25(10):3601-3604.
APA 黄涛,左芬,Huang, T,&Zuo, F.(2008).Remarks on two-dimensional power correction in soft wall model.CHINESE PHYSICS LETTERS,25(10),3601-3604.
MLA 黄涛,et al."Remarks on two-dimensional power correction in soft wall model".CHINESE PHYSICS LETTERS 25.10(2008):3601-3604.
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