arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1805.03089hep-ph
收藏

Borelized谱和规则的大Nc极限与径向Regge轨线的斜率

The large-Nc limit of borelized spectral sum rules and the slope of radial Regge trajectories

S. S. Afonin, T. D. Solomko

摘要:

本文提出了一种新的唯象方法,由基态和真空凝聚态计算径向轨道的斜率。该方法是基于一个大的$N_c$扩展的borelized谱和规则。该方法适用于轻非奇异矢量介子、轴介子和标量介子。斜率的提取值被证明是近似普适的,并且在$1.4\pm0.1$ GeV $^2$的区间内。作为一个副产品,给定的方法导致预测的第二个径向轨道与基态质量躺在0.6 GeV附近。

英文摘要:

We put forward a new phenomenological method for calculating the slope of radial trajectories from values of ground states and vacuum condensates. The method is based on a large-$N_c$ extension of borelized spectral sum rules. The approach is applied to the light non-strange vector, axial, and scalar mesons. The extracted values of slopes proved to be approximately universal and are in the interval $1.4\pm0.1$ GeV$^2$. As a by-product, the given method leads to prediction of the second radial trajectory with ground state mass lying near 0.6 GeV.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑