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arXiv 1801.02196hep-phnucl-exnucl-th
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$η$和$η'$与EtaMAID的光生成,包括Regge现象学

$η$ and $η'$ photoproduction with EtaMAID including Regge phenomenology

V. L. Kashevarov, L. Tiator, M. Ostrick

摘要:

我们提出了一个新的版本的EtaMAID模型的$η$和$η'$光生核子。该模型包括23个核子共振参数化Breit-Wigner形状。背景描述的矢量和轴矢量介子交换的$t$通道使用Regge削减现象。共振的参数,从一个合适的$η$和$η'$光生质子和中子的实验数据。最有趣的观察数据的性质进行了讨论。

英文摘要:

We present a new version of the EtaMAID model for $η$ and $η'$ photoproduction on nucleons. The model includes 23 nucleon resonances parameterized with Breit-Wigner shapes. The background is described by vector and axial-vector meson exchanges in the $t$ channel using the Regge cut phenomenology. Parameters of the resonances were obtained from a fit to available experimental data for $η$ and $η'$ photoproduction on protons and neutrons. The nature of the most interesting observations in the data is discussed.

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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