在5.02 A TeV检验大型强子对撞机初始状态核遮蔽时对p+Pb的预测
Predictions for p+Pb at 5.02A TeV to test initial state nuclear shadowing at the Large Hadron Collider
摘要:
共线因式微扰量子色动力学(pQCD)模型的预测进行了比较$p+{\rm Pb}$在5.02 $A$ TeV的测试在大型强子对撞机(LHC)的部分子分布的核阴影。用{ \small HIJING/BB v2.0模型}和一个嵌入了广义部分子分布函数的pQCD改进的部分子模型kTpQCD\_v2.0计算了赝快度分布、核修正因子(NMF)、$R_{p{\rm Pb}}(y=0,p_T<20\;{\rm GeV}/{\it c}) = dn_{p{\rm Pb}} /(N_{\rm coll}(b)dn_{pp})$和赝快度不对称性$Y_{asym}^{h}(p_T)=R^h_{pPb}(p_T, η<0)/R^h_{pPb}(p_T,η>0)$.这些结果是Phys. Rev. C { \bf 85},024903(2012)中所列结果的更新计算。
英文摘要:
Collinear factorized perturbative quantum chromodynamics (pQCD) model predictions are compared for $p+{\rm Pb}$ at 5.02$A$ TeV to test nuclear shadowing of parton distribution at the Large Hadron Collider (LHC). The pseudorapidity distribution the nuclear modification factor (NMF), $R_{p{\rm Pb}}(y=0,p_T<20\;{\rm GeV}/{\it c}) = dn_{p{\rm Pb}} /(N_{\rm coll}(b)dn_{pp})$ and the pseudorapidity asymmetry $Y_{asym}^{h}(p_T)=R^h_{pPb}(p_T, η<0)/R^h_{pPb}(p_T,η>0)$ are computed using {\small HIJING/BB v2.0 model} and a pQCD improved parton model kTpQCD\_v2.0 which embedded generalized parton distribution functions (PDFs). These results are updated calculations of those presented in Phys. Rev. C {\bf 85}, 024903 (2012).
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