Towards understanding broad degeneracy in non-strange mesons

被引:55
作者
Afonin, S. S. [1 ]
机构
[1] St Petersburg State Univ, VA Fock Inst Phys, St Petersburg 198504, Russia
基金
俄罗斯基础研究基金会;
关键词
experimental spectrum; hadron symmetries; CHIRAL-SYMMETRY RESTORATION; REGGE TRAJECTORIES; SPECTRUM; SYSTEMATICS; BEHAVIOR; LIGHT; QCD;
D O I
10.1142/S0217732307024024
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The spectroscopic regularities of modern empirical data on the non-strange mesons up to 2.4 GeV can be summarized as a systematic clustering of states near certain values of energy. It is getting evident that some unknown X-symmetry triggers the phenomenon. We review the experimental status of this symmetry and recent theoretical attempts put forward for explanation of broad degeneracy.
引用
收藏
页码:1359 / 1371
页数:13
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