论文标题
在CERN大型强子对撞机上可用的能量中，PP碰撞中的charmonium生产
Charmonium production in pp collisions at energies available at the CERN Large Hadron Collider
论文作者
论文摘要
我们在不同的大型强子对撞机（LHC）能量的P-P碰撞中对J/$ψ$和$ψ$（2s）的系统进行了系统的研究，并使用领先的Quarkonium生产的领先顺序的非相关量子式彩色动力学模型。我们将Hiher激发态腐烂到J $ψ$的贡献包括在内。已经将计算值与LHC的四个实验的可用数据进行了比较，即爱丽丝，地图集，CMS和LHCB。就爱丽丝而言，通过使用固定订购的近代领先对数形式主义包括从B介子中包括从B介子组合的馈送，可以计算出包容性的J/$ψ$和$ψ$（2s）的横截面。发现所有实验横截面均以$ p _ {\ rm t}> $ 3 GEV的理论不确定性的$ p _ {\ rm t}> $ 3 GEV进行了很好的描述。
We have performed a systematic study of J/$ψ$ and $ψ$(2S) production in p--p collisions at different Large Hadron Collider (LHC) energies and at different rapidities using the leading order non-relativistic quantum chromodynamics model of heavy quarkonium production. We have included the contributions from hiher excited states decaying to J$ψ$ . The calculated values have been compared with the available data from the four experiments at LHC, namely ALICE, ATLAS, CMS and LHCb. In the case of ALICE, inclusive J/$ψ$ and $ψ$(2S) cross-sections have been calculated by including the feed-down from B mesons using a fixed-order next-to-leading logarithm formalism. It is found that all the experimental cross-sections are well described for $p_{\rm T} >$ 3 GeV within the theoretical uncertainties arising due to the choices of the factorization and renormalization scales.
