标题： 强子谱和全息QCD中的轻子波函数 显示英文标题

标题： Hadronic Spectra and Light-Front Wavefunctions in Holographic QCD

摘要： 我们展示如何将定义在AdS$_5$空间第五维度上的弦振幅$\Phi(z)$准确映射到物理时空中的强子轻锥波函数。 我们发现全息变量$z$与一个冲击变量$\zeta$之间存在精确对应关系，该变量表示强子内部组成部分的横向分离度。 此外，我们推导出质量为零的夸克和胶子束缚态的有效四维薛定谔方程，这些方程精确再现了AdS/CFT的结果，并对轻夸克介子和重子谱以及类空$Q^2$的形式因子给出了现实的描述。 仅引入一个设定质量尺度的参数$\Lambda_{QCD}$。 显示英文摘要

摘要： We show how the string amplitude $\Phi(z)$ defined on the fifth dimension in AdS$_5$ space can be precisely mapped to the light-front wavefunctions of hadrons in physical spacetime. We find an exact correspondence between the holographic variable $z$ and an impact variable $\zeta$, which represents the measure of transverse separation of the constituents within the hadrons. In addition, we derive effective four dimensional Schr\"odinger equations for the bound states of massless quarks and gluons which exactly reproduce the AdS/CFT results and give a realistic description of the light-quark meson and baryon spectrum as well as the form factors for spacelike $Q^2$. Only one parameter which sets the mass scale, $\Lambda_{QCD}$, is introduced.