arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1303.6897hep-ph
收藏

QCD中$γ^\ast Λ\to Σ^0$转变的分析

Analysis of $γ^\ast Λ\to Σ^0$ transition in QCD

T. M. Aliev, K. Azizi, M. Savci

摘要:

利用光锥QCD求和规则方法研究了$γ^\ast Λ\to Σ^0$跃迁的形状因子.利用$Σ^0$重子内插电流的最一般形式和$Λ$重子的分布振幅,计算了电磁形状因子对$Q^2$的依赖性.我们的结果与协变旁观者夸克模型的预言进行了比较。

英文摘要:

The $γ^\ast Λ\to Σ^0$ transition form factors are investigated within the light--cone QCD sum rules method. Using the most general form of the interpolating current of $Σ^0$ baryon and the distribution amplitudes of $Λ$ baryon we calculate the $Q^2$ dependence of the electromagnetic form factors. Our result are compared with the predictions of the covariant spectator quark model.

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。

↑