Electromagnetic transition form factors of the Roper resonance in effective field theory
Electromagnetic transition form factors of the Roper resonance in effective field theory
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DOI：
10.1103/physrevc.90.015201
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发表时间：
2014-02
影响因子：
3.1
通讯作者：
T. Bauer;Lothar Tiator;Stefan Scherer
中科院分区：
文献类型：
--
作者：
T. Bauer;Lothar Tiator;Stefan Scherer
本文在低能有效场论的框架下，分析了电磁核子-偌普共振跃迁的形式因素。应用复质量格式生成了系统的功率计数程序。在这个功率计数中，我们计算了形状因素，并将结果与经验数据相匹配。
We analyze the form factors of the electromagnetic nucleon-to-Roper-resonance transition in the framework of low-energy effective field theory. A systematic power-counting procedure is generated by applying the complex-mass scheme. Within this power counting we calculate the form factors to next-to-next-to-leading order and fit the results to empirical data.