论文标题
从彩色玻璃冷凝物中以近代领先的顺序对矢量介子的独家光生启动
Exclusive photoproduction of vector meson at next-to-leading order from Color Glass Condensate
论文作者
论文摘要
通过考虑到颜色玻璃冷凝器的框架中的近后领先订单校正，研究了矢量介子的独家光生生源（$ j/ψ$和$ ϕ $）。我们与HERA数据发现了良好的一致性，我们面对了次订单修改的偶极子幅度。我们的研究表明，从领先订单，运行耦合以及弹性横截面的$χ^2/d.o.f $从领先订单，运行耦合和共线改进的近代领先的偶极子振幅为2.159、1.097和0.932，以及2.056、1.449和1.357的差异横截面。结果表明，高阶校正对媒介中的生产具有显着贡献，并且一旦包括高阶校正，实验数据的描述就会显着改善。我们通过使用从HERA获得的相同参数将近代的独家媒介介子生产模型扩展到LHC Energies。我们发现，我们的模型还可以对$ j/ψ$和$ ϕ $数据进行相当好的描述，在7 tev的Proton-Proton碰撞中，在LHCB实验中进行了13个TEV。
The exclusive photoproduction of vector mesons ($J/ψ$ and $ϕ$) are investigated by taking into account the next-to-leading order corrections in the framework of Color Glass Condensate. We confront the next-to-leading order modified dipole amplitude with the HERA data finding good agreement. Our studies show that the $χ^2/d.o.f$ from leading order, running coupling and collinearly improved next-to-leading order dipole amplitudes are 2.159, 1.097, and 0.932 for the elastic cross section, and 2.056, 1.449, and 1.357 for differential cross section. The outcomes indicate that the higher-order corrections have a significant contribution to the vector meson productions and the description of the experimental data is dramatically improved once the higher order corrections are included. We extend the next-to-leading order exclusive vector meson production model to LHC energies by using the same parameters obtained from HERA. We find that our model can also give a rather good description of the $J/ψ$ and $ϕ$ data in proton-proton collision at 7 TeV and 13 TeV at LHCb experiments.
