论文标题
手性总和在轻正面和锥的3D图像上
Chiral sum rule on the light front and the 3D image of the pion
论文作者
论文摘要
最轻的介子，锥子，具有两个面孔 - 一个是QCD的基本金石玻色子，另一个是夸克和胶子的结构化结合状态。为了在价空间中的单个光线波函数中容纳两者，我们通过分析保守的轴向向量电流和波函数的一般结构来获得总和规则。使用全息图动机的分析模型，我们表明该总和与ADS/QCD中手性对称性破坏的要求一致。在该模型中，我们发现了乳头的显着特征，即密度在其半径内大多是均匀的。此外，我们与Spacelike Momena的实验性旋转形式构成良好的一致性。
The lightest meson, the pion, features two faces -- one is the elementary Goldstone boson of QCD and the other is the structured bound state of quarks and gluons. To accommodate both in a single light-front wave function in the valence space, we obtain a sum rule by analyzing the conserved axial-vector current and the general structures of the wave functions. Using an analytic model motivated by holography, we show this sum rule is consistent with requirements of chiral symmetry breaking in AdS/QCD. Within this model, we find a remarkable feature of the pion, namely that the density is mostly uniform inside its radius; furthermore, we obtain good agreement with the experimental pion form factor at spacelike momenta.
