论文标题

在ADS/QCD中,低能和高能量限制的等效案例

The case of equivalence of low and high energy constraints on Regge vector spectrum in AdS/QCD

论文作者

Afonin, S. S., Solomko, T. D.

论文摘要

据信ADS/QCD模型在QCD的低能和高能领域之间插值。这种信念通常是基于观察结果,即在高能量处施加的许多现象学上合理的预测遵循,尽管半经典自下而上全息模型的假设适用性受到量规/重力二元对QCD紧密耦合的低能量的仪表/重力二元性的限制。为了测试高能量限制的可行性,有趣的是,在低和高矩处,从独立和高矩上计算一些可观察到的常数并进行比较是很有趣的。我们考虑了一种以一般形式描述Spin-1介子的Regge样线性光谱的ADS/QCD模型,并表明在确定的物理假设下,对2分相关函数的低能限制导致线性径向谱的参数与高能量相同的数值几乎相同。鉴于可观察到的这种特性对于保形理论是自然的,而真正的强相互作用并非保质,发现的近似巧合是令人惊讶的。

The AdS/QCD models are believed to interpolate between low and high energy sectors of QCD. This belief is usually based on observations that many phenomenologically reasonable predictions follow from bounds imposed at high energies although the hypothetical range of applicability of semiclassical bottom-up holographic models is restricted by the gauge/gravity duality to low energies where QCD is strongly coupled. For testing the feasibility of high energy constraints it is interesting to calculate holographically some observable constants at low and high momenta independently and compare. We consider an AdS/QCD model describing the Regge-like linear spectrum of spin-1 mesons in a general form and show that under definite physical assumptions, the low-energy constraints on 2-point correlation functions lead to nearly the same numerical values for the parameters of linear radial spectrum as the high energy ones. The found approximate coincidence looks surprising in view of the fact that such a property for observables is natural for conformal theories while real strong interactions are not conformal.

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