论文标题
在LHC的PP，PA和AA模式中的包含衍射$ \rmη_{C} $生产
Inclusive diffractive $\rm η_{c}$ production in pp, pA and AA modes at the LHC
论文作者
论文摘要
In this paper, the inclusive Pomeron-Pomeron, Reggeon-Reggeon, Pomeron-Reggeon as well as gluon-Pomeron(-Reggeon) and photon-Pomeron(-Reggeon) interactions for the $\rm η_{c}$ at the LHC energies have been examined in proton-proton, proton-nucleus and nucleus-nucleus collision modes.横截面是基于NRQCD分解和Regge理论形式主义计算的。 Pomeron-Reggeon贡献的交叉交换在$ \ rm pp $和$ \ rm pa $模式中很重要。 Pomeron-Pomeron的贡献在$ \ rm aa $模式下很重要。 Pomeron的贡献对于$ \ rm aa $和$ \ rm pa $模式的单个衍射过程中的贡献很大，其中$ \ rm a $经历了衍射过程。 Reggeon贡献在$ \ rm pp $和$ \ rm pa $模式下是相当的，其中$ \ rm p $仅经历衍射过程。光子 - 波美龙和reggeon过程中的Pomeron和Reggeon贡献仍然小于Gluon-Pomeron和Reggeon过程。我们的结果表明，Reggeon，Pomeron及其交叉交换的实验研究可以在某些运动学窗口中进行，并在LHC处进行特定选择。该研究对于更好地限制Reggeon和Pomeron Parton含量很有用。包容性过程是应预测的相关独家过程的背景。
In this paper, the inclusive Pomeron-Pomeron, Reggeon-Reggeon, Pomeron-Reggeon as well as gluon-Pomeron(-Reggeon) and photon-Pomeron(-Reggeon) interactions for the $\rm η_{c}$ at the LHC energies have been examined in proton-proton, proton-nucleus and nucleus-nucleus collision modes. The cross section has been computed based on the NRQCD factorization and Regge theory formalism. The cross exchange of Pomeron-Reggeon contribution is important in $\rm pp$ and $\rm pA$ modes. The Pomeron-Pomeron contribution is significant in $\rm AA$ mode. The Pomeron contribution is considerable for $\rm AA$ and $\rm pA$ modes in single diffractive process where $\rm A$ undergoes the diffractive process. Reggeon contribution is sizable in $\rm pp$ and $\rm pA$ modes where $\rm p$ only undergoes the diffractive process. The Pomeron and Reggeon contributions in photon-Pomeron and-Reggeon process remain smaller than that of gluon-Pomeron and-Reggeon processes. Our results show that the experimental study of Reggeon, Pomeron and their cross exchange can be carried out in certain kinematic windows with the specific choice of the mode at the LHC. The investigation can be useful to better constrain the Reggeon and Pomeron parton content. The inclusive process serves as the background to related exclusive processes which should be predicted.
