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arXiv 0905.0419hep-ph
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基于隐规范么正方法的矢量介子-矢量介子相互作用动力学共振态

Dynamically generated resonances from vector meson-vector meson interaction based on a hidden-gauge unitary approach

L. S. Geng, E. Oset, R. Molina, D. Nicmorus

摘要:

本文利用基于隐规范拉格朗日量的幺正方法研究了矢量介子-矢量介子相互作用。我们发现动态生成了11个状态,对应于第二Riemann面上散射矩阵的极点。其中五个与$f_0(1370)$、$f_0(1710)$、$f_2(1270)$、$f_2'(1525)$和$K^*_2(1430)$有关,通过比较这些状态的质量、宽度和衰变模式与它们的实验对应物。另外6个量子数分别为$h_1$、$a_0$、$b_1$、$a_2$、$K^*_0$和$K_1$的电子不能用任何实验观察到的共振态清楚地识别出来,应该作为预测值由将来的实验来检验。

英文摘要:

We present a recent study of vector meson-vector meson interaction using a unitary approach based on the hidden-gauge Lagrangians. We find that 11 states get dynamically generated, corresponding to poles of the scattering matrices on the second Riemann sheet. Five of them are associated to the $f_0(1370)$, $f_0(1710)$, $f_2(1270)$, $f_2'(1525)$, and $K^*_2(1430)$, by comparing the mass, width, and decay pattern of these states with those of their experimental counterparts. Six others with the quantum numbers of $h_1$, $a_0$, $b_1$, $a_2$, $K^*_0$, and $K_1$ can not be clearly identified with any experimentally observed resonances and should be taken as predictions to be tested by future experiments.

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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