论文标题
硬性衍射$ \rmη_{c，b} $在LHC处
Hard diffractive $\rm η_{c,b}$ hadroproduction at the LHC
论文作者
论文摘要
在本文中，我们调查了$ \rmη_{c} $和$ \rmη_{b} $在LHC Energies上的包含衍射型载体生殖。基于Quarkonium生产机制的NRQCD分解形式主义和解决的Pomeron模型，我们估计了横截面的速度，动量分数损失依赖性。我们相对于非衍射过程给出了单个和中央衍射过程的预测比。这些包容性过程对Pomeron的Gluon含量很敏感，用于小$ x $，对于大$ x $，可用于研究大小$ x $物理学，并且有益于以$ \rmη_{c} $和$ \ rm的$ \ rmη_{b} $生产的不同机制。因此，它们还可以作为相关独家过程的背景。我们的结果表明，衍射过程的贡献贡献可能是相当的，甚至有时在波美龙上占主导地位，并且其研究对于更好地限制了Reggeon Parton含量很有用。 Reggeon的实验研究可以在某些运动学窗口中进行。
In this paper, we investigate the inclusive diffractive hadroproduction for $\rm η_{c}$ and $\rm η_{b}$ at the LHC energies. Based on the NRQCD factorization formalism and the resolved-Pomeron model for the quarkonium production mechanism, we estimate the rapidity, momentum fraction loss dependence of the cross section. We give prediction ratios for single and central diffractive processes with respect to non diffractive process. These inclusive processes are sensitive to gluon content of Pomeron for small-$x$ and Reggeon for large-$x$, useful to study small and large-$x$ physics and good to test different mechanism for $\rm η_{c}$ and $\rm η_{b}$ production at the LHC. They also serve as the background to related exclusive processes thus should be predicted. Our results demonstrate that the Reggeon contribution of diffractive processes can be sizable, even sometimes dominant over Pomeron, and that its study can be useful to better constrain the Reggeon parton content. The experimental study of Reggeon can be carried out in certain kinematic windows.
