SU(4) symmetry of the dynamical QCD string and genesis of hadron spectra
SU(4) symmetry of the dynamical QCD string and genesis of hadron spectra
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动态QCD弦的SU(4)对称性和强子谱的起源
DOI：
10.1140/epja/i2015-15027-x
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
L. Glozman
中科院分区：
文献类型：
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作者：
L. Glozman
在动力学晶格模拟中，通过约化狄拉克算符的准零模，发现给定自旋的介子具有大的简并度。本文证明了对称群SU（4）\supset SU（2）_L \times SU（2）_R \times U（1）_A \times \mathcal{C}_i$$与观测到的简并性是一致的。我们认为这个对称群是动力学QCD弦的对称性。这张照片的起源轻强子谱的影响进行了讨论。
A large degeneracy of mesons of a given spin has recently been discovered upon reduction of the quasi-zero modes of the Dirac operator in a dynamical lattice simulation. Here it is shown that a symmetry group $$SU(4) \supset SU(2)_L \times SU(2)_R \times U(1)_A \times \mathcal{C}_i$$ is consistent with the observed degeneracy. It is argued that this symmetry group is a symmetry of the dynamical QCD string. Implications of this picture for a genesis of light hadron spectra are discussed.