论文标题
Hyperons和$θ_s^+$ in Holographic QCD
Hyperons and $Θ_s^+$ in Holographic QCD
论文作者
论文摘要
我们通过将奇怪的夸克质量视为沉重的质量，重新审视了Sakai-Sugimoto结构中奇怪的Baryons的全息描述。 Hyperons由巨大的$（k，k^*）$多重，构成散装的淡淡味道instanton，这在Callan-Klebanov Construction的精神上很大。模块化的汉密尔顿映射到Landau问题上，这是由二维外部磁场中的带电粒子，由散装Chern-Simons相互作用以及自旋轨道耦合引起的。随后的全息超子光谱与经验相比。全息奇怪的pentaquark baryon $θ^+_ s $显示为未结合。
We revisit the holographic description of strange baryons in the context of the Sakai-Sugimoto construction, by considering the strange quark mass as heavy. Hyperons are described by a massive $(K,K^*)$ multiplet, bound to a light-flavor instanton in bulk, much in the spirit of the Callan-Klebanov construction. The modular Hamiltonian maps onto the Landau problem, a charged particle in a 2-dimensional external magnetic field, induced by the bulk Chern-Simons interaction, plus spin-orbit coupling. The ensuing holographic hyperon spectrum compares fairly with the empirical one. The holographic strange pentaquark baryon $Θ^+_s$ is shown to be unbound.
