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arXiv 1701.07171hep-ph
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非定域夸克模型中$γ\rightarrow 3π$的跃迁形状因子

Transition form-factor of $γ\rightarrow 3π$ in nonlocal quark model

A. S. Zhevlakov

摘要:

在非定域手征夸克模型的框架下,研究了一个γ到三个π介子的跃迁形状因子$F_{3π}$。在局部极限下,结果与手征微扰理论一致,再现了Wess-Zumino-Witten反常。在手征极限下,非定域性的存在不改变跃迁形状因子的值。在反应的物理阈值上,考虑夸克的当前质量,得到了与实验值接近的跃迁形状因子$F_{3π}$。

英文摘要:

The transition form factor of a gamma into three pions $F_{3π}$ are studied in a framework of nonlocal chiral quark model. In local limit the result is agreement with chiral perturbative theory and reproduce Wess-Zumino-Witten anomaly. Availability of nonlocality not change a value of transition form factor in chiral limit. On the physical threshold of reaction, the transition form factor $F_{3π}$ is obtained close to the experimental data on account of current mass of quark.

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。

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