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arXiv 1104.3672nucl-th
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K介子光生过程中张量介子交换的证据

Evidence for the tensor meson exchange in the kaon photoproduction

Byung Geel Yu, Tae Keun Choi, W. Kim

摘要:

在Regge框架下研究了张量介子$K_2^*(1430)$交换在过程$γp\to K^+Λ(Σ^0)$中的贡献.在$K(494)+K^*(892)$交换中包含$K_2^*$交换,其耦合常数选自SU(3)对称性,这导致更好地描述产生机制,而无需参考任何拟合程序。这表明了张量介子交换作用的重要性,使具有SU(3)对称性的Regge理论基本上不含参数,对介子-重子耦合有很好的近似。

英文摘要:

The contribution of the tensor meson $K_2^*(1430)$ exchange in the process $γp\to K^+Λ(Σ^0)$ is investigated within the Regge framework. Inclusion of the $K_2^*$ exchange in the $K(494)+K^*(892)$ exchanges with the coupling constants chosen from the SU(3) symmetry leads to a better description of the production mechanism without referring to any fitting procedure. This shows the significance of the role of the tensor meson exchange to have the Regge theory basically free of parameters with the SU(3) symmetry a good approximation for the meson-baryon couplings.

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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