论文标题
带有三种口味和大NC总和规则的手性拉格朗日
The chiral Lagrangian with three flavors and large-Nc sum rules
论文作者
论文摘要
我们用三大味道巴里昂田地重新考虑手性拉格朗日。对在近代领先顺序的Baryon Octet和解剖场中有助于轴向矢量和伪级电流的所有LEC进行系统分析。尽管领先订单有4个LEC，但转向标准的手性命令的相关LEC数量为23。对于那些领先的订单，分别是第3和18个总规则。在下一个准确级别上，总和规则的数量减少到2和8。我们的结果通过对可用的轴向矢量耦合常数和Baryon解剖状态的强衰减宽度进行的树级分析来说明。
We reconsider the chiral Lagrangian with three-flavor baryon fields. A systematic analysis of all LEC that contribute to the axial-vector and pseudoscalar currents in the baryon octet and decuplet fields at next-to-leading order is performed. While there are 4 LEC relevant at leading order, the number of relevant LEC at subleading chiral order is 23. For those a leading order large-$N_c$ analysis predicts 3 and 18 sum rules respectively. At the next accuracy level the number of sum rules is reduced to 2 and 8. Our results are illustrated by a tree-level analysis of available axial-vector coupling constants and strong decay widths of the baryon decuplet states.
