论文标题
$ j/ψ$ the nucleon上的Pomeron-LQCD模型
Pomeron-LQCD model of $J/Ψ$ photo-production on the nucleon
论文作者
论文摘要
基于媒介中的占优势假设，已经开发了一种哈密顿模型，以研究$ j/ψ$ shin $ j/ψ$ nucleon势从物理的晶格QCD计算中提取的$ j/ψ$ - 努克莱的电势。修订版D {\ bf 82}，091501（2010）。发现预测的总截面与杰斐逊实验室的$ j/ψ$照片产生反应的最新数据相媲美。然后将该模型扩展到包括Donnachie和Lanshoff在Regge现象学中建模的两种胶结交换振幅。然后，由此产生的Pomeron-LQCD模型可以将数据解释为不变质量$ W = $ 300 GEV。讨论了减少预测不确定性所需的未来改进。说明了从LQCD短距离的$ J/ψ$ -n准确提取的需求。
Based on the vector meson dominance assumption, a Hamiltonian model has been developed to investigate $J/Ψ$ photo-production reaction on the nucleon by using the $J/Ψ$-nucleon potential extracted from a lattice QCD calculation of Phys. Rev. D{\bf 82}, 091501 (2010). It is found that the predicted total cross sections are comparable to the recent data of $J/Ψ$ photo-production reaction from Jefferson Laboratory. The model is then extended to include the two-gluon exchange amplitude modeled by Donnachie and Lanshoff within Regge Phenomenology. The resulting Pomeron-LQCD model can then explain the data up to invariant mass $W=$ 300 GeV. Future improvements needed to reduce the uncertainties of the predictions are discussed. The need of an accurate extraction of $J/Ψ$-N potential at short distances from LQCD is illustrated.
