Radiative decay into gamma P of the low lying axial-vector mesons
Radiative decay into gamma P of the low lying axial-vector mesons
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DOI：
10.1103/physrevd.77.034017
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发表时间：
2008-02
影响因子：
5
通讯作者：
H. Nagahiro;Luis Roca;E. Oset
中科院分区：
文献类型：
--
作者：
H. Nagahiro;Luis Roca;E. Oset
我们计算了由矢量-赝标介子相互作用动态产生的轴矢量介子的辐射衰变为赝标介子和光子的过程。我们考虑到树的水平和循环图来自轴矢量衰变成一个矢量和赝标介子。我们发现不同的轴矢量介子的辐射宽度的值的大跨度。特别是，我们评估的辐射衰减到K{gamma}的两个K{sub 1}（1270）状态，最近声称的理论，并讨论的实验值引用到目前为止的假设只有一个状态。
We evaluate the radiative decay into a pseudoscalar meson and a photon of the whole set of the axial-vector mesons dynamically generated from the vector-pseudoscalar meson interaction. We take into account tree level and loop diagrams coming from the axial-vector decay into a vector and a pseudoscalar meson. We find a large span for the values of the radiative widths of the different axial-vector mesons. In particular, we evaluate the radiative decay into K{gamma} of the two K{sub 1}(1270) states, recently claimed theoretically, and discuss the experimental values quoted so far on the assumption of only one state.