论文标题
$ {\ rm qcd_2} $中的手性发行
Chirality distributions inside baryons in ${\rm QCD_2}$
论文作者
论文摘要
旋转分布与重子的拓扑结构之间的联系是一个开放而重要的问题。在这里，我们使用$（1+1）$时空尺寸的QCD来解决它，这是可以在大量颜色$ n $的情况下解决的。 It is found that the distribution of chirality inside a baryon is drastically different from a chirality distribution inside states with zero baryon number, ``mesons". This difference is shown to arise from the topological structure of the baryon -- at large $N$, all of the baryon's chirality is concentrated near $x=0$, whereas in a meson state it vanishes in the small $x$ limit. Our results illustrate how the巴里昂重新出现的组成特征与授权词素解决方案的拓扑特征有关。
The connection between the spin distribution and the topological structure of the baryon is an open and important problem. Here we address it using QCD in $(1+1)$ spacetime dimensions, which is exactly solvable at large number of colors $N$. It is found that the distribution of chirality inside a baryon is drastically different from a chirality distribution inside states with zero baryon number, ``mesons". This difference is shown to arise from the topological structure of the baryon -- at large $N$, all of the baryon's chirality is concentrated near $x=0$, whereas in a meson state it vanishes in the small $x$ limit. Our results illustrate how the constituent features of the baryon reemerge and are tied to the topological features of the bosonized solitonic solution. Possible implications for QCD in $(3+1)$ dimensions and for deep inelastic scattering experiments are discussed.
