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arXiv 0910.0384hep-ph
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Regge模型中的带电K ~* 光生

Charged K* Photoproduction in a Regge model

S. Ozaki, H. Nagahiro, A. Hosaka

摘要:

我们在Regge方法中研究了$γp \to K^{*+} Λ$反应。对于散射振幅的规范不变性,我们对s通道振幅和接触项振幅以及$t$通道振幅进行了正则化。我们得到的总截面的减少行为,CLAS的初步数据显示。我们还计算了自旋密度矩阵,并发现我们的Regge模型和以前的Feynman(等压线)模型之间的明显差异。

英文摘要:

We investigate $γp \to K^{*+} Λ$ reaction within a Regge approach. For the gauge invariance of the scattering amplitude, we reggeize the s-channel and contact term amplitudes as well as the $t$-channel amplitude. We obtain the decreasing behavior of the total cross section as the CLAS's preliminary data show. We also calculate spin density matrices, and find clear differences between our Regge model and the previous Feynman (isobar) model.

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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